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//]]> </script> <noscript> <img alt='' height='1' src='https://ad.doubleclick.net/ddm/activity/src=2542116;type=gblog;cat=googl0;ord=1?' width='1'/> </noscript>  <div class='header-outer'> <div class='header-inner'> <div class='section' id='header'><div class='widget Header' data-version='1' id='Header1'> <div class='header-left'> <div class='header-title'> <a class='google-logo' href='https://blog.chromium.org/'> <img alt="Chromium Blog" height="50" src="//1.bp.blogspot.com/-vkF7AFJOwBk/VkQxeAGi1mI/AAAAAAAARYo/57denvsQ8zA/s1600-r/logo_chromium.png"> </a> <a href='/.'> <h2> Chromium Blog </h2> </a> </div> <div class='header-desc'> News and developments from the open source browser project </div> </div> </div></div> </div> </div>  <div class='cols-wrapper loading'> <div class='col-main-wrapper'> <div class='col-main'> <div class='section' id='main'><div class='widget Blog' data-version='1' id='Blog1'> <div class='post' data-id='5811482738591755633' itemscope='' itemtype='http://schema.org/BlogPosting'> <h2 class='title' itemprop='name'> <a href='https://blog.chromium.org/2008/09/google-chrome-memory-usage-good-and-bad.html' itemprop='url' title='Google Chrome Memory Usage - Good and Bad'> Google Chrome Memory Usage - Good and Bad </a> </h2> <div class='post-header'> <div class='published'> <span class='publishdate' itemprop='datePublished'> Friday, September 19, 2008 </span> </div> </div> <div class='post-body'> <div class='post-content' itemprop='articleBody'> <script type='text/template'> <div> A lot of smart people are doing some serious tire kicking on Google Chrome. Now with several days of testing under their belts, we're seeing many observations about Google Chrome's memory usage. I've just posted a <a href="http://dev.chromium.org/memory-usage-backgrounder">techie document</a> about memory over on the developer website as an initial brain-dump of our current thinking about memory usage within Google Chrome. This article is a quick summary.</div> <div> <br /></div> <div> <span class="Apple-style-span" style="font-weight: bold;">Measuring memory</span></div> <div> <span class="Apple-style-span" style="font-weight: bold;"><br /></span></div> <div> If you're measuring memory in a multi-process application like Google Chrome, don't forget to take into account shared memory. If you add the size of each process via the Windows XP task manager, you'll be double counting the shared memory for each process. If there are a large number of processes, double-counting can account for 30-40% extra memory size.</div> <div> <br /></div> <div> To make it easy to summarize multi-process memory usage, Google Chrome provides the "about:memory" page which includes a detailed breakdown of Google Chrome's memory usage and also provides basic comparisons to other browsers that are running.</div> <div> <br /></div> <div> <span class="Apple-style-span" style="font-weight: bold;">Multi-process Model Disadvantages</span></div> <div> <span class="Apple-style-span" style="font-weight: bold;"><br /></span></div> <div> While the multi-process model provides clear robustness and performance benefits, it can also be a setback in terms of using the absolute smallest amount of memory. Since each tab is its own "sandboxed" process, tabs cannot share information easily. Any data structures needed for general rendering of web pages must be replicated to each tab. We've done our best to minimize this, but we have a lot more work to do.</div> <div> <br /></div> <div> <span class="Apple-style-span" style="font-style: italic;">Example</span>: Try opening the browser with 10 different sites in 10 tabs. You will probably notice that Google Chrome uses significantly more memory than single-process browsers do for this case.</div> <div> <br /></div> <div> Keep in mind that we believe this is a good trade-off. For example; each tab has it's own JavaScript engine. An attack compromising one tab's Javascript engine is much less likely to be able to gain access to another tab (which may contain banking information) due to process separation. Operating systems vendors learned long ago that there are many benefits to not having all applications load into a single process space, despite the fact that multiple processes do incur overhead.</div> <div> <br /></div> <div> <span class="Apple-style-span" style="font-weight: bold;">Multi-process advantages</span></div> <div> <span class="Apple-style-span" style="font-weight: bold;"><br /></span></div> <div> Despite the setback, the multi-process model has advantages too. The primary advantage is the ability to partition memory for particular pages. So, when you close a page (tab), that partition of memory can be completely cleaned up. This is much more difficult to do in a single-process browser.</div> <div> <br /></div> <div> To demonstrate, lets expand on the example above. Now that you have 10 open tabs in a single process browser and Google Chrome, try closing 9 of them, and check the memory usage. Hopefully, this will demonstrate that Google Chrome is actually able to reclaim more memory than the single process browser generally can. We hope this is indicative of general user behavior, where many sites are visited on a daily basis; but when the user leaves a site, we want to cleanup everything.</div> <div> <br /></div> <div> You can find even more details in the <a href="http://www.chromium.org/developers/memory-usage-backgrounder">design doc</a> in our Chromium <a href="http://dev.chromium.org/">developer website</a>.</div> <br /> <span class="post-author">Posted by Mike Belshe, Software Engineer</span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </script> <noscript> <div> A lot of smart people are doing some serious tire kicking on Google Chrome. Now with several days of testing under their belts, we're seeing many observations about Google Chrome's memory usage. I've just posted a <a href="http://dev.chromium.org/memory-usage-backgrounder">techie document</a> about memory over on the developer website as an initial brain-dump of our current thinking about memory usage within Google Chrome. This article is a quick summary.</div> <div> <br /></div> <div> <span class="Apple-style-span" style="font-weight: bold;">Measuring memory</span></div> <div> <span class="Apple-style-span" style="font-weight: bold;"><br /></span></div> <div> If you're measuring memory in a multi-process application like Google Chrome, don't forget to take into account shared memory. If you add the size of each process via the Windows XP task manager, you'll be double counting the shared memory for each process. If there are a large number of processes, double-counting can account for 30-40% extra memory size.</div> <div> <br /></div> <div> To make it easy to summarize multi-process memory usage, Google Chrome provides the "about:memory" page which includes a detailed breakdown of Google Chrome's memory usage and also provides basic comparisons to other browsers that are running.</div> <div> <br /></div> <div> <span class="Apple-style-span" style="font-weight: bold;">Multi-process Model Disadvantages</span></div> <div> <span class="Apple-style-span" style="font-weight: bold;"><br /></span></div> <div> While the multi-process model provides clear robustness and performance benefits, it can also be a setback in terms of using the absolute smallest amount of memory. Since each tab is its own "sandboxed" process, tabs cannot share information easily. Any data structures needed for general rendering of web pages must be replicated to each tab. We've done our best to minimize this, but we have a lot more work to do.</div> <div> <br /></div> <div> <span class="Apple-style-span" style="font-style: italic;">Example</span>: Try opening the browser with 10 different sites in 10 tabs. You will probably notice that Google Chrome uses significantly more memory than single-process browsers do for this case.</div> <div> <br /></div> <div> Keep in mind that we believe this is a good trade-off. For example; each tab has it's own JavaScript engine. An attack compromising one tab's Javascript engine is much less likely to be able to gain access to another tab (which may contain banking information) due to process separation. Operating systems vendors learned long ago that there are many benefits to not having all applications load into a single process space, despite the fact that multiple processes do incur overhead.</div> <div> <br /></div> <div> <span class="Apple-style-span" style="font-weight: bold;">Multi-process advantages</span></div> <div> <span class="Apple-style-span" style="font-weight: bold;"><br /></span></div> <div> Despite the setback, the multi-process model has advantages too. The primary advantage is the ability to partition memory for particular pages. So, when you close a page (tab), that partition of memory can be completely cleaned up. This is much more difficult to do in a single-process browser.</div> <div> <br /></div> <div> To demonstrate, lets expand on the example above. Now that you have 10 open tabs in a single process browser and Google Chrome, try closing 9 of them, and check the memory usage. Hopefully, this will demonstrate that Google Chrome is actually able to reclaim more memory than the single process browser generally can. We hope this is indicative of general user behavior, where many sites are visited on a daily basis; but when the user leaves a site, we want to cleanup everything.</div> <div> <br /></div> <div> You can find even more details in the <a href="http://www.chromium.org/developers/memory-usage-backgrounder">design doc</a> in our Chromium <a href="http://dev.chromium.org/">developer website</a>.</div> <br /> <span class="post-author">Posted by Mike Belshe, Software Engineer</span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </noscript> </div> </div> <div class='share'> <span class='twitter-custom social-wrapper' data-href='http://twitter.com/share?text=Chromium Blog:Google Chrome Memory Usage - Good and Bad&url=https://blog.chromium.org/2008/09/google-chrome-memory-usage-good-and-bad.html&via=ChromiumDev'> <img alt='Share on Twitter' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_twitter_black_24dp.png' width='24'/> </span> <span class='fb-custom social-wrapper' data-href='https://www.facebook.com/sharer.php?u=https://blog.chromium.org/2008/09/google-chrome-memory-usage-good-and-bad.html'> <img alt='Share on Facebook' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_facebook_black_24dp.png' width='24'/> </span> </div> <div class='post-footer'> <div class='cmt_iframe_holder' data-href='https://blog.chromium.org/2008/09/google-chrome-memory-usage-good-and-bad.html' data-viewtype='FILTERED_POSTMOD'></div> <a href='https://plus.google.com/112374322230920073195' rel='author' style='display:none;'> Google </a> <div class='label-footer'> </div> </div> </div> <div class='post' data-id='2487642070899356588' itemscope='' itemtype='http://schema.org/BlogPosting'> <h2 class='title' itemprop='name'> <a href='https://blog.chromium.org/2008/09/dns-prefetching-or-pre-resolving.html' itemprop='url' title='DNS Prefetching (or Pre-Resolving)'> DNS Prefetching (or Pre-Resolving) </a> </h2> <div class='post-header'> <div class='published'> <span class='publishdate' itemprop='datePublished'> Wednesday, September 17, 2008 </span> </div> </div> <div class='post-body'> <div class='post-content' itemprop='articleBody'> <script type='text/template'> <div>A major goal of Google Chrome was to improve user enjoyment and value in web surfing. Critical to that is increasing the responsiveness of the browser to user input, or reducing user perceived latency. Measurements in the browser have shown that a significant amount of time is traditionally spent waiting for DNS to resolve domain names. To speed up browsing, Google Chrome resolves domain names before the user navigates, typically while the user is viewing a web page. This is done using your computer's normal DNS resolution mechanism; no connection to Google is used. As a result, user navigation time in Google Chrome when first visiting a domain is on average about 250ms faster than traditional browsing, and the occasional but painful 1-second-plus delays are almost never experienced.</div><div><br /></div><div><span class="Apple-style-span" style="font-weight: bold;">How it works, and how much it helps.</span></div><div><br /></div><div>First off, DNS Resolution is the translation of a domain name, such as www.google.com, into an IP address, such as 74.125.19.147. A user can't go anywhere on the internet until after the target domain is resolved via DNS.</div><div><br /></div><div>The histograms at the end of this post show actual resolution times encountered when computers needed to contact their network for DNS resolutions. The data was gathered during our pre-release testing by Google employees who opted-in to contributing their results. As can be seen in that data, the average latency was generally around 250ms, and many resolutions took over 1 second, some even several seconds.</div><div><br /></div><div>DNS prefetching just resolves domain names before a user tries to navigate, so that there will be no effective user delay due to DNS resolution. The most obvious example where prefetching can help is when a user is looking at a page with many links to various unexplored domains, such as a search results page. Google Chrome automatically scans the content of each rendered page looking for links, extracting the domain name from each link, and resolving each domain to an IP address. All this work is done in parallel with the user's reading of the page, hardly using any CPU power. When a user clicks on any of these pre-resolved names to visit a new domain, they will save an average of over 250ms in their navigation.  </div><div><br /></div><div>If you've been running Google Chrome for a while, be sure to try typing "about:dns" into the address bar to see what savings you've accrued! Humorously, this prefetching feature often goes unnoticed, as users simply avoid the pain of waiting, and tend to think the network is just fast and smooth. To look at it another way, DNS prefetching removes the variance from surfing latency that is induced by DNS resolutions. (Note: If about:dns doesn't show any savings, then you probably are using a proxy, which is resolving DNS on the behalf of your browser.)</div><div><br /></div><div>There are several other benefits that Google Chrome derives from DNS prefetching. During startup, it pre-resolves domain names, such as the home pages, very early in the startup process. This tends to save about 200-500 ms during application startups. Google Chrome also pre-resolves the host names in URLs suggested by the omnibox while the user is typing, but before they press enter. This feature works independently of the broader omnibox logic, and doesn't utilize any connection to Google. As a result, Google Chrome will generally navigate to a typed URL faster, or reach a user's search provider faster. Depending on the popularity of the target domain, this can save 100-250ms on average, and much more in the worst case.</div><div><br /></div><div>If you are running Google Chrome, try typing "about:histograms/DNS.PrefetchFoundName" into the address bar to see details of the resolution times currently being encountered on your machine.</div><div><br /></div><div>The bottom line to all this DNS prefetching is that Google Chrome works overtime, anticipating a user's needs, and making sure they have a very smooth surfing experience. Google Chrome doesn't just render and run Java Script at a remarkable speed, it gets users to their destinations quickly, and generally sidesteps the pitfalls surrounding DNS resolution time.</div><div><br /></div><div>Of course, the best way to see this DNS prefetching feature work, is to just surf.  </div><div><br /></div><div><span class="Apple-style-span" style="font-weight: bold;">Sample of DNS Resolutions Times requiring Network Activity (i.e., over 15ms resolution)</span></div><div><br /></div><div>The following is a recent histogram of aggregated DNS resolutions times observed during tests of Google Chrome by Googlers, prior to the product's public release. The samples listed are only those that required network access (i.e., took more than 15 ms). The left column lists the lower range of each bucket.  For example, the first bucket lists samples between 14 and 18ms inclusive. The next three columns show the number of samples in that range, the fraction of samples in the range, and the cumulative fraction of samples at or below that range. For example, in the first bucket, there were 31761 samples in this bucket range, or about 5.10% of all the 6,228,600 samples shown. Looking at the cumulative percentage column (far right), we can see that the median resolution took around 90ms (actually, 52.71% took less than 118ms, but 43.63% took less than 87ms). Reading from the top of the chart, the average DNS resolution time was 271ms, and the standard deviation was 1.130 seconds. The "long tail" may have included users that lost network connectivity, and eventually reconnected, producing extraordinarily long resolution times.</div><div><br /></div><div><br /></div><div>Count: 6,228,600; Sum of times: 1,689,207,135; Mean: 271 ± 1130.67</div><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhexvlDry4dzIGdazF6k6cgsZy6qjvdvPjPu6auwhhfNyTe6WXG9BjW-bGHv0Tei6fWXHKXLVZvb09aBmpp03XCJpAj4aOWyIZiWYyhrOmBrU16PMErwlqqBZz61NczyuBHzRBOPlJUbVMX/s1600-h/histogram.PNG"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5247044084893705170" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhexvlDry4dzIGdazF6k6cgsZy6qjvdvPjPu6auwhhfNyTe6WXG9BjW-bGHv0Tei6fWXHKXLVZvb09aBmpp03XCJpAj4aOWyIZiWYyhrOmBrU16PMErwlqqBZz61NczyuBHzRBOPlJUbVMX/s400/histogram.PNG" style="cursor:pointer; cursor:hand;" /></a><br /><span class="post-author"><div><br /></div>Posted by Jim Roskind, Software Engineer</span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </script> <noscript> <div>A major goal of Google Chrome was to improve user enjoyment and value in web surfing. Critical to that is increasing the responsiveness of the browser to user input, or reducing user perceived latency. Measurements in the browser have shown that a significant amount of time is traditionally spent waiting for DNS to resolve domain names. To speed up browsing, Google Chrome resolves domain names before the user navigates, typically while the user is viewing a web page. This is done using your computer's normal DNS resolution mechanism; no connection to Google is used. As a result, user navigation time in Google Chrome when first visiting a domain is on average about 250ms faster than traditional browsing, and the occasional but painful 1-second-plus delays are almost never experienced.</div><div><br /></div><div><span class="Apple-style-span" style="font-weight: bold;">How it works, and how much it helps.</span></div><div><br /></div><div>First off, DNS Resolution is the translation of a domain name, such as www.google.com, into an IP address, such as 74.125.19.147. A user can't go anywhere on the internet until after the target domain is resolved via DNS.</div><div><br /></div><div>The histograms at the end of this post show actual resolution times encountered when computers needed to contact their network for DNS resolutions. The data was gathered during our pre-release testing by Google employees who opted-in to contributing their results. As can be seen in that data, the average latency was generally around 250ms, and many resolutions took over 1 second, some even several seconds.</div><div><br /></div><div>DNS prefetching just resolves domain names before a user tries to navigate, so that there will be no effective user delay due to DNS resolution. The most obvious example where prefetching can help is when a user is looking at a page with many links to various unexplored domains, such as a search results page. Google Chrome automatically scans the content of each rendered page looking for links, extracting the domain name from each link, and resolving each domain to an IP address. All this work is done in parallel with the user's reading of the page, hardly using any CPU power. When a user clicks on any of these pre-resolved names to visit a new domain, they will save an average of over 250ms in their navigation.  </div><div><br /></div><div>If you've been running Google Chrome for a while, be sure to try typing "about:dns" into the address bar to see what savings you've accrued! Humorously, this prefetching feature often goes unnoticed, as users simply avoid the pain of waiting, and tend to think the network is just fast and smooth. To look at it another way, DNS prefetching removes the variance from surfing latency that is induced by DNS resolutions. (Note: If about:dns doesn't show any savings, then you probably are using a proxy, which is resolving DNS on the behalf of your browser.)</div><div><br /></div><div>There are several other benefits that Google Chrome derives from DNS prefetching. During startup, it pre-resolves domain names, such as the home pages, very early in the startup process. This tends to save about 200-500 ms during application startups. Google Chrome also pre-resolves the host names in URLs suggested by the omnibox while the user is typing, but before they press enter. This feature works independently of the broader omnibox logic, and doesn't utilize any connection to Google. As a result, Google Chrome will generally navigate to a typed URL faster, or reach a user's search provider faster. Depending on the popularity of the target domain, this can save 100-250ms on average, and much more in the worst case.</div><div><br /></div><div>If you are running Google Chrome, try typing "about:histograms/DNS.PrefetchFoundName" into the address bar to see details of the resolution times currently being encountered on your machine.</div><div><br /></div><div>The bottom line to all this DNS prefetching is that Google Chrome works overtime, anticipating a user's needs, and making sure they have a very smooth surfing experience. Google Chrome doesn't just render and run Java Script at a remarkable speed, it gets users to their destinations quickly, and generally sidesteps the pitfalls surrounding DNS resolution time.</div><div><br /></div><div>Of course, the best way to see this DNS prefetching feature work, is to just surf.  </div><div><br /></div><div><span class="Apple-style-span" style="font-weight: bold;">Sample of DNS Resolutions Times requiring Network Activity (i.e., over 15ms resolution)</span></div><div><br /></div><div>The following is a recent histogram of aggregated DNS resolutions times observed during tests of Google Chrome by Googlers, prior to the product's public release. The samples listed are only those that required network access (i.e., took more than 15 ms). The left column lists the lower range of each bucket.  For example, the first bucket lists samples between 14 and 18ms inclusive. The next three columns show the number of samples in that range, the fraction of samples in the range, and the cumulative fraction of samples at or below that range. For example, in the first bucket, there were 31761 samples in this bucket range, or about 5.10% of all the 6,228,600 samples shown. Looking at the cumulative percentage column (far right), we can see that the median resolution took around 90ms (actually, 52.71% took less than 118ms, but 43.63% took less than 87ms). Reading from the top of the chart, the average DNS resolution time was 271ms, and the standard deviation was 1.130 seconds. The "long tail" may have included users that lost network connectivity, and eventually reconnected, producing extraordinarily long resolution times.</div><div><br /></div><div><br /></div><div>Count: 6,228,600; Sum of times: 1,689,207,135; Mean: 271 ± 1130.67</div><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhexvlDry4dzIGdazF6k6cgsZy6qjvdvPjPu6auwhhfNyTe6WXG9BjW-bGHv0Tei6fWXHKXLVZvb09aBmpp03XCJpAj4aOWyIZiWYyhrOmBrU16PMErwlqqBZz61NczyuBHzRBOPlJUbVMX/s1600-h/histogram.PNG"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5247044084893705170" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhexvlDry4dzIGdazF6k6cgsZy6qjvdvPjPu6auwhhfNyTe6WXG9BjW-bGHv0Tei6fWXHKXLVZvb09aBmpp03XCJpAj4aOWyIZiWYyhrOmBrU16PMErwlqqBZz61NczyuBHzRBOPlJUbVMX/s400/histogram.PNG" style="cursor:pointer; cursor:hand;" /></a><br /><span class="post-author"><div><br /></div>Posted by Jim Roskind, Software Engineer</span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </noscript> </div> </div> <div class='share'> <span class='twitter-custom social-wrapper' data-href='http://twitter.com/share?text=Chromium Blog:DNS Prefetching (or Pre-Resolving)&url=https://blog.chromium.org/2008/09/dns-prefetching-or-pre-resolving.html&via=ChromiumDev'> <img alt='Share on Twitter' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_twitter_black_24dp.png' width='24'/> </span> <span class='fb-custom social-wrapper' data-href='https://www.facebook.com/sharer.php?u=https://blog.chromium.org/2008/09/dns-prefetching-or-pre-resolving.html'> <img alt='Share on Facebook' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_facebook_black_24dp.png' width='24'/> </span> </div> <div class='post-footer'> <div class='cmt_iframe_holder' data-href='https://blog.chromium.org/2008/09/dns-prefetching-or-pre-resolving.html' data-viewtype='FILTERED_POSTMOD'></div> <a href='https://plus.google.com/112374322230920073195' rel='author' style='display:none;'> Google </a> <div class='label-footer'> </div> </div> </div> <div class='post' data-id='3532286548361325434' itemscope='' itemtype='http://schema.org/BlogPosting'> <h2 class='title' itemprop='name'> <a href='https://blog.chromium.org/2008/09/multi-process-architecture.html' itemprop='url' title='Multi-process Architecture'> Multi-process Architecture </a> </h2> <div class='post-header'> <div class='published'> <span class='publishdate' itemprop='datePublished'> Thursday, September 11, 2008 </span> </div> </div> <div class='post-body'> <div class='post-content' itemprop='articleBody'> <script type='text/template'> <div>Unlike most current web browsers, Google Chrome uses many operating system processes to keep web sites separate from each other and from the rest of your computer.  In this blog post, I'll explain why using a multi-process architecture can be a big win for browsers on today's web.  I'll also talk about which parts of the browser belong in each process and in which situations Google Chrome creates new processes.</div><div><br /></div><div><span class="Apple-style-span" style="font-weight: bold;">1. Why use multiple processes in a browser?</span></div><div><br /></div><div>In the days when most current browsers were designed, web pages were simple and had little or no active code in them.  It made sense for the browser to render all the pages you visited in the same process, to keep resource usage low.</div><div><br /></div><div>Today, however, we've seen a major shift towards active web content, ranging from pages with lots of JavaScript and Flash to full-blown "web apps" like Gmail.  Large parts of these apps run inside the browser, just like normal applications run on an operating system.  Just like an operating system, the browser must keep these apps separate from each other.</div><div><br /></div><div>On top of this, the parts of the browser that render HTML, JavaScript, and CSS have become extraordinarily complex over time.  These rendering engines frequently have bugs as they continue to evolve, and some of these bugs may cause the rendering engine to occasionally crash.  Also, rendering engines routinely face untrusted and even malicious code from the web, which may try to exploit these bugs to install malware on your computer.</div><div><br /></div><div>In this world, browsers that put everything in one process face real challenges for robustness, responsiveness, and security.  If one web app causes a crash in the rendering engine, it will take the rest of the browser with it, including any other web apps that are open.  Web apps often have to compete with each other for CPU time on a single thread, sometimes causing the entire browser to become unresponsive.  Security is also a concern, because a web page that exploits a vulnerability in the rendering engine can often take over your entire computer.</div><div><br /></div><div>It doesn't have to be this way, though.  Web apps are designed to be run independently of each other in your browser, and they could be run in parallel.  They don't need much access to your disk or devices, either.  The security policy used throughout the web ensures this, so that you can visit most web pages without worrying about your data or your computer's safety.  This means that it's possible to more completely isolate web apps from each other in the browser without breaking them.  The same is true of browser plug-ins like Flash, which are loosely coupled with the browser and can be separated from it without much trouble.</div><div><br /></div><div>Google Chrome takes advantage of these properties and puts web apps and plug-ins in separate processes from the browser itself.  This means that a rendering engine crash in one web app won't affect the browser or other web apps.  It means the OS can run web apps in parallel to increase their responsiveness, and it means the browser itself won't lock up if a particular web app or plug-in stops responding.  It also means we can run the rendering engine processes in a restrictive sandbox that helps limit the damage if an exploit does occur.</div><div><br /></div><div>Interestingly, using multiple processes means Google Chrome can have its own Task Manager (shown below), which you can get to by right clicking on the browser's title bar.  This Task Manager lets you track resource usage for each web app and plug-in, rather than for the entire browser.  It also lets you kill any web apps or plug-ins that have stopped responding, without having to restart the entire browser.</div><div><br /></div><div><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj48MppTSKa7HB85URmaKLXou5Q4JBtW0gbpHQREiGqq2-m-igl0bik-LQW5sxhdtYq15ZxSJbfzfdJik7hD62uiuaoamEh0HVd5VvgLZljmgoZh1J8xO0_nWQO1wPd3lh-kJqNXOfa2Roc/s400/google_chrome_task_manager.png" style="margin:0" /></div><br /><div>For all of these reasons, Google Chrome's multi-process architecture can help it be more robust, responsive, and secure than single process browsers.</div><div><br /></div><div><span class="Apple-style-span" style="font-weight: bold;">2. What goes in each process?</span></div><div><br /></div><div>Google Chrome creates three different types of processes: browser, renderers, and plug-ins.</div><div><br /></div><div><span class="Apple-style-span" style="font-style: italic;">Browser</span>.  There's only one browser process, which manages the tabs, windows, and "chrome" of the browser.  This process also handles all interactions with the disk, network, user input, and display, but it makes no attempt to parse or render any content from the web.</div><div><br /></div><div><span class="Apple-style-span" style="font-style: italic;">Renderers</span>.  The browser process creates many renderer processes, each responsible for rendering web pages.  The renderer processes contain all the complex logic for handling HTML, JavaScript, CSS, images, and so on.  We achieve this using the open source WebKit rendering engine, which is also used by Apple's Safari web browser.  Each renderer process is run in a sandbox, which means it has almost no direct access to your disk, network, or display.  All interactions with web apps, including user input events and screen painting, must go through the browser process.  This lets the browser process monitor the renderers for suspicious activity, killing them if it suspects an exploit has occurred.</div><div><br /></div><div><span class="Apple-style-span" style="font-style: italic;">Plug-ins</span>.  The browser process also creates one process for each type of plug-in that is in use, such as Flash, Quicktime, or Adobe Reader.  These processes just contain the plug-ins themselves, along with some glue code to let them interact with the browser and renderers.</div><div><br /></div><div><span class="Apple-style-span" style="font-weight: bold;">3. When should the browser create processes?</span></div><div><br /></div><div>Once Google Chrome has created its browser process, it will generally create one renderer process for each instance of a web site you visit.  This approach aims to keep pages from different web sites isolated from each other.</div><div><br /></div><div>You can think of this as using a different process for each tab in the browser, but allowing two tabs to share a process if they are related to each other and are showing the same site.  For example, if one tab opens another tab using JavaScript, or if you open a link to the same site in a new tab, the tabs will share a renderer process.  This lets the pages in these tabs communicate via JavaScript and share cached objects.  Conversely, if you type the URL of a different site into the location bar of a tab, we will swap in a new renderer process for the tab.</div><div><br /></div><div>Compatibility with existing web pages is important for us.  For this reason, we define a web site as a registered domain name, like google.com or bbc.co.uk.  This means we'll consider sub-domains like mail.google.com and maps.google.com as part of the same site.  This is necessary because there are cases where tabs from different sub-domains may try to communicate with each other via JavaScript, so we want to keep them in the same renderer process.</div><div><br /></div><div>There are a few caveats to this basic approach, however.  Your computer would start to slow down if we created too many processes, so we place a limit on the number of renderer processes that we create (20 in most cases).  Once we hit this limit, we'll start re-using the existing renderer processes for new tabs.  Thus, it's possible that the same renderer process could be used for more than one web site.  We also don't yet put cross-site frames in their own processes, and we don't yet swap a tab's renderer process for all types of cross-site navigations.  So far, we only swap a tab's process for navigations via the browser's "chrome," like the location bar or bookmarks.  Despite these caveats, Google Chrome will generally keep instances of different web sites isolated from each other in common usage.</div><div><br /></div><div>For each type of plug-in, Google Chrome will create a plug-in process when you first visit a page that uses it.  A short time after you close all pages using a particular plug-in, we will destroy its process.</div><div><br /></div><div>We'll post future blog entries as we refine our policies for creating and swapping among renderer processes.  In the mean time, we hope you see some of the benefits of a multi-process architecture when using Google Chrome.</div><div><br /></div><span class="post-author">Posted by Charlie Reis</span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </script> <noscript> <div>Unlike most current web browsers, Google Chrome uses many operating system processes to keep web sites separate from each other and from the rest of your computer.  In this blog post, I'll explain why using a multi-process architecture can be a big win for browsers on today's web.  I'll also talk about which parts of the browser belong in each process and in which situations Google Chrome creates new processes.</div><div><br /></div><div><span class="Apple-style-span" style="font-weight: bold;">1. Why use multiple processes in a browser?</span></div><div><br /></div><div>In the days when most current browsers were designed, web pages were simple and had little or no active code in them.  It made sense for the browser to render all the pages you visited in the same process, to keep resource usage low.</div><div><br /></div><div>Today, however, we've seen a major shift towards active web content, ranging from pages with lots of JavaScript and Flash to full-blown "web apps" like Gmail.  Large parts of these apps run inside the browser, just like normal applications run on an operating system.  Just like an operating system, the browser must keep these apps separate from each other.</div><div><br /></div><div>On top of this, the parts of the browser that render HTML, JavaScript, and CSS have become extraordinarily complex over time.  These rendering engines frequently have bugs as they continue to evolve, and some of these bugs may cause the rendering engine to occasionally crash.  Also, rendering engines routinely face untrusted and even malicious code from the web, which may try to exploit these bugs to install malware on your computer.</div><div><br /></div><div>In this world, browsers that put everything in one process face real challenges for robustness, responsiveness, and security.  If one web app causes a crash in the rendering engine, it will take the rest of the browser with it, including any other web apps that are open.  Web apps often have to compete with each other for CPU time on a single thread, sometimes causing the entire browser to become unresponsive.  Security is also a concern, because a web page that exploits a vulnerability in the rendering engine can often take over your entire computer.</div><div><br /></div><div>It doesn't have to be this way, though.  Web apps are designed to be run independently of each other in your browser, and they could be run in parallel.  They don't need much access to your disk or devices, either.  The security policy used throughout the web ensures this, so that you can visit most web pages without worrying about your data or your computer's safety.  This means that it's possible to more completely isolate web apps from each other in the browser without breaking them.  The same is true of browser plug-ins like Flash, which are loosely coupled with the browser and can be separated from it without much trouble.</div><div><br /></div><div>Google Chrome takes advantage of these properties and puts web apps and plug-ins in separate processes from the browser itself.  This means that a rendering engine crash in one web app won't affect the browser or other web apps.  It means the OS can run web apps in parallel to increase their responsiveness, and it means the browser itself won't lock up if a particular web app or plug-in stops responding.  It also means we can run the rendering engine processes in a restrictive sandbox that helps limit the damage if an exploit does occur.</div><div><br /></div><div>Interestingly, using multiple processes means Google Chrome can have its own Task Manager (shown below), which you can get to by right clicking on the browser's title bar.  This Task Manager lets you track resource usage for each web app and plug-in, rather than for the entire browser.  It also lets you kill any web apps or plug-ins that have stopped responding, without having to restart the entire browser.</div><div><br /></div><div><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj48MppTSKa7HB85URmaKLXou5Q4JBtW0gbpHQREiGqq2-m-igl0bik-LQW5sxhdtYq15ZxSJbfzfdJik7hD62uiuaoamEh0HVd5VvgLZljmgoZh1J8xO0_nWQO1wPd3lh-kJqNXOfa2Roc/s400/google_chrome_task_manager.png" style="margin:0" /></div><br /><div>For all of these reasons, Google Chrome's multi-process architecture can help it be more robust, responsive, and secure than single process browsers.</div><div><br /></div><div><span class="Apple-style-span" style="font-weight: bold;">2. What goes in each process?</span></div><div><br /></div><div>Google Chrome creates three different types of processes: browser, renderers, and plug-ins.</div><div><br /></div><div><span class="Apple-style-span" style="font-style: italic;">Browser</span>.  There's only one browser process, which manages the tabs, windows, and "chrome" of the browser.  This process also handles all interactions with the disk, network, user input, and display, but it makes no attempt to parse or render any content from the web.</div><div><br /></div><div><span class="Apple-style-span" style="font-style: italic;">Renderers</span>.  The browser process creates many renderer processes, each responsible for rendering web pages.  The renderer processes contain all the complex logic for handling HTML, JavaScript, CSS, images, and so on.  We achieve this using the open source WebKit rendering engine, which is also used by Apple's Safari web browser.  Each renderer process is run in a sandbox, which means it has almost no direct access to your disk, network, or display.  All interactions with web apps, including user input events and screen painting, must go through the browser process.  This lets the browser process monitor the renderers for suspicious activity, killing them if it suspects an exploit has occurred.</div><div><br /></div><div><span class="Apple-style-span" style="font-style: italic;">Plug-ins</span>.  The browser process also creates one process for each type of plug-in that is in use, such as Flash, Quicktime, or Adobe Reader.  These processes just contain the plug-ins themselves, along with some glue code to let them interact with the browser and renderers.</div><div><br /></div><div><span class="Apple-style-span" style="font-weight: bold;">3. When should the browser create processes?</span></div><div><br /></div><div>Once Google Chrome has created its browser process, it will generally create one renderer process for each instance of a web site you visit.  This approach aims to keep pages from different web sites isolated from each other.</div><div><br /></div><div>You can think of this as using a different process for each tab in the browser, but allowing two tabs to share a process if they are related to each other and are showing the same site.  For example, if one tab opens another tab using JavaScript, or if you open a link to the same site in a new tab, the tabs will share a renderer process.  This lets the pages in these tabs communicate via JavaScript and share cached objects.  Conversely, if you type the URL of a different site into the location bar of a tab, we will swap in a new renderer process for the tab.</div><div><br /></div><div>Compatibility with existing web pages is important for us.  For this reason, we define a web site as a registered domain name, like google.com or bbc.co.uk.  This means we'll consider sub-domains like mail.google.com and maps.google.com as part of the same site.  This is necessary because there are cases where tabs from different sub-domains may try to communicate with each other via JavaScript, so we want to keep them in the same renderer process.</div><div><br /></div><div>There are a few caveats to this basic approach, however.  Your computer would start to slow down if we created too many processes, so we place a limit on the number of renderer processes that we create (20 in most cases).  Once we hit this limit, we'll start re-using the existing renderer processes for new tabs.  Thus, it's possible that the same renderer process could be used for more than one web site.  We also don't yet put cross-site frames in their own processes, and we don't yet swap a tab's renderer process for all types of cross-site navigations.  So far, we only swap a tab's process for navigations via the browser's "chrome," like the location bar or bookmarks.  Despite these caveats, Google Chrome will generally keep instances of different web sites isolated from each other in common usage.</div><div><br /></div><div>For each type of plug-in, Google Chrome will create a plug-in process when you first visit a page that uses it.  A short time after you close all pages using a particular plug-in, we will destroy its process.</div><div><br /></div><div>We'll post future blog entries as we refine our policies for creating and swapping among renderer processes.  In the mean time, we hope you see some of the benefits of a multi-process architecture when using Google Chrome.</div><div><br /></div><span class="post-author">Posted by Charlie Reis</span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </noscript> </div> </div> <div class='share'> <span class='twitter-custom social-wrapper' data-href='http://twitter.com/share?text=Chromium Blog:Multi-process Architecture&url=https://blog.chromium.org/2008/09/multi-process-architecture.html&via=ChromiumDev'> <img alt='Share on Twitter' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_twitter_black_24dp.png' width='24'/> </span> <span class='fb-custom social-wrapper' data-href='https://www.facebook.com/sharer.php?u=https://blog.chromium.org/2008/09/multi-process-architecture.html'> <img alt='Share on Facebook' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_facebook_black_24dp.png' width='24'/> </span> </div> <div class='post-footer'> <div class='cmt_iframe_holder' data-href='https://blog.chromium.org/2008/09/multi-process-architecture.html' data-viewtype='FILTERED_POSTMOD'></div> <a href='https://plus.google.com/112374322230920073195' rel='author' style='display:none;'> Google </a> <div class='label-footer'> </div> </div> </div> <div class='post' data-id='7770298913975836255' itemscope='' itemtype='http://schema.org/BlogPosting'> <h2 class='title' itemprop='name'> <a href='https://blog.chromium.org/2008/09/security-architecture.html' itemprop='url' title='Security Architecture'> Security Architecture </a> </h2> <div class='post-header'> <div class='published'> <span class='publishdate' itemprop='datePublished'> Wednesday, September 10, 2008 </span> </div> </div> <div class='post-body'> <div class='post-content' itemprop='articleBody'> <script type='text/template'> <div>Chromium helps protect your computer from malware by running some parts of the browser in a sandbox.  The sandbox tries to limit what an attacker can do after exploiting a bug.  In particular, the sandbox aims to prevent malicious web sites from automatically installing software on your computer and from reading confidential files on your hard drive.</div><div><br /></div><div>The two main modules of Chromium are the browser process and the rendering engine.  The browser process has the same access to your computer that you do, so we try to reduce its attack surface by keeping it as simple as possible.  For example, the browser process does not attempt to understand HTML, JavaScript, or other complex parts of web pages.  The rendering engine does the heavy lifting: laying out web pages and running JavaScript.</div><div><br /></div><div>To access your hard drive or the network, the rendering engine must go through the browser process, which checks to make sure the request looks legitimate.  In a sense, the browser process acts like a supervisor that double-checks that the rendering engine is acting appropriately.  The sandbox doesn't prevent every kind of attack (for example, it doesn't stop phishing or cross-site scripting), but it should make it harder for attackers to get to your files.</div><div><br /></div><div>To see how well this architecture might mitigate future attacks, we studied recent vulnerabilities in web browsers.  We found that about 70% of the most serious vulnerabilities (those that let an attacker execute arbitrary code) were in the rendering engine.  Although "number of vulnerabilities" is not an ideal metric for evaluating security, these numbers do suggest that sandboxing the rendering engine is likely to help improve security.</div><div><br /></div><div>To learn more, check out our <a href="http://crypto.stanford.edu/websec/chromium/">technical report</a> on Chromium's security architecture.</div><div><br /></div><span class="post-author">Posted by Adam Barth, Collin Jackson, and Charlie Reis, Software Engineers</span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </script> <noscript> <div>Chromium helps protect your computer from malware by running some parts of the browser in a sandbox.  The sandbox tries to limit what an attacker can do after exploiting a bug.  In particular, the sandbox aims to prevent malicious web sites from automatically installing software on your computer and from reading confidential files on your hard drive.</div><div><br /></div><div>The two main modules of Chromium are the browser process and the rendering engine.  The browser process has the same access to your computer that you do, so we try to reduce its attack surface by keeping it as simple as possible.  For example, the browser process does not attempt to understand HTML, JavaScript, or other complex parts of web pages.  The rendering engine does the heavy lifting: laying out web pages and running JavaScript.</div><div><br /></div><div>To access your hard drive or the network, the rendering engine must go through the browser process, which checks to make sure the request looks legitimate.  In a sense, the browser process acts like a supervisor that double-checks that the rendering engine is acting appropriately.  The sandbox doesn't prevent every kind of attack (for example, it doesn't stop phishing or cross-site scripting), but it should make it harder for attackers to get to your files.</div><div><br /></div><div>To see how well this architecture might mitigate future attacks, we studied recent vulnerabilities in web browsers.  We found that about 70% of the most serious vulnerabilities (those that let an attacker execute arbitrary code) were in the rendering engine.  Although "number of vulnerabilities" is not an ideal metric for evaluating security, these numbers do suggest that sandboxing the rendering engine is likely to help improve security.</div><div><br /></div><div>To learn more, check out our <a href="http://crypto.stanford.edu/websec/chromium/">technical report</a> on Chromium's security architecture.</div><div><br /></div><span class="post-author">Posted by Adam Barth, Collin Jackson, and Charlie Reis, Software Engineers</span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </noscript> </div> </div> <div class='share'> <span class='twitter-custom social-wrapper' data-href='http://twitter.com/share?text=Chromium Blog:Security Architecture&url=https://blog.chromium.org/2008/09/security-architecture.html&via=ChromiumDev'> <img alt='Share on Twitter' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_twitter_black_24dp.png' width='24'/> </span> <span class='fb-custom social-wrapper' data-href='https://www.facebook.com/sharer.php?u=https://blog.chromium.org/2008/09/security-architecture.html'> <img alt='Share on Facebook' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_facebook_black_24dp.png' width='24'/> </span> </div> <div class='post-footer'> <div class='cmt_iframe_holder' data-href='https://blog.chromium.org/2008/09/security-architecture.html' data-viewtype='FILTERED_POSTMOD'></div> <a href='https://plus.google.com/112374322230920073195' rel='author' style='display:none;'> Google </a> <div class='label-footer'> </div> </div> </div> <div class='post' data-id='7793303175695939921' itemscope='' itemtype='http://schema.org/BlogPosting'> <h2 class='title' itemprop='name'> <a href='https://blog.chromium.org/2008/09/taking-suggestions-on-suggest.html' itemprop='url' title='Taking Suggestions on Suggest'> Taking Suggestions on Suggest </a> </h2> <div class='post-header'> <div class='published'> <span class='publishdate' itemprop='datePublished'> Tuesday, September 9, 2008 </span> </div> </div> <div class='post-body'> <div class='post-content' itemprop='articleBody'> <script type='text/template'> Google Suggest is one of the things that makes the omnibox so cool. Just type a few letters and Google Chrome will often point you at the search query or the page that you were trying to type. Based on feedback from privacy groups, the Suggest team is making some changes to the information they log. You can <a href="http://googleblog.blogspot.com/2008/09/update-to-google-suggest.html">read more about it</a> on the Google Blog.<br /><br /><span class="post-author">Posted by Ian Fette, Product Manager</span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </script> <noscript> Google Suggest is one of the things that makes the omnibox so cool. Just type a few letters and Google Chrome will often point you at the search query or the page that you were trying to type. Based on feedback from privacy groups, the Suggest team is making some changes to the information they log. You can <a href="http://googleblog.blogspot.com/2008/09/update-to-google-suggest.html">read more about it</a> on the Google Blog.<br /><br /><span class="post-author">Posted by Ian Fette, Product Manager</span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </noscript> </div> </div> <div class='share'> <span class='twitter-custom social-wrapper' data-href='http://twitter.com/share?text=Chromium Blog:Taking Suggestions on Suggest&url=https://blog.chromium.org/2008/09/taking-suggestions-on-suggest.html&via=ChromiumDev'> <img alt='Share on Twitter' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_twitter_black_24dp.png' width='24'/> </span> <span class='fb-custom social-wrapper' data-href='https://www.facebook.com/sharer.php?u=https://blog.chromium.org/2008/09/taking-suggestions-on-suggest.html'> <img alt='Share on Facebook' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_facebook_black_24dp.png' width='24'/> </span> </div> <div class='post-footer'> <div class='cmt_iframe_holder' data-href='https://blog.chromium.org/2008/09/taking-suggestions-on-suggest.html' data-viewtype='FILTERED_POSTMOD'></div> <a href='https://plus.google.com/112374322230920073195' rel='author' style='display:none;'> Google </a> <div class='label-footer'> </div> </div> </div> <div class='post' data-id='824351061585756141' itemscope='' itemtype='http://schema.org/BlogPosting'> <h2 class='title' itemprop='name'> <a href='https://blog.chromium.org/2008/09/chrome-3s-webkit.html' itemprop='url' title='Chrome <3s WebKit'> Chrome <3s WebKit </a> </h2> <div class='post-header'> <div class='published'> <span class='publishdate' itemprop='datePublished'> Friday, September 5, 2008 </span> </div> </div> <div class='post-body'> <div class='post-content' itemprop='articleBody'> <script type='text/template'> Our recent launch of Google Chrome simply would not have been possible were it not for the awesome <a href="http://webkit.org/">WebKit</a> rendering engine and the <a href="//www.google.com/search?hl=en&q=cache:http://trac.webkit.org/wiki/WebKit%2520Team&btnG=Search">amazing team</a> behind it. We want to take a moment to recognize their excellent work (past and present!) and talk about how we arrived at incorporating WebKit into Google Chrome. By the way, that excellent <a href="http://twitter.com/perivision/statuses/907564759">web</a> <a href="http://twitter.com/mayhemchaos/statuses/908095530">inspector</a> <a href="http://twitter.com/JohnB/statuses/907242324">tool</a> is actually a <a href="http://webkit.org/blog/108/yet-another-one-more-thing-a-new-web-inspector/">component of WebKit</a> ;-)<br /><br />At the onset of the project, we knew we didn't want to create yet <span style="font-style: italic;">another</span> rendering engine. After all, web developers already have enough to worry about when it comes to making sure that all users can access their web pages and web applications. Being inside Google, where we develop lots of pages and webapps, we were very familiar with this problem!<br /><br />Yet, we also knew that we wanted to create a multi-process browser, which meant that our rendering engine needed to be very lightweight as we were going to be running many of them. Furthermore, in order to achieve our sandboxing objectives, the rendering engine needed to be stripped of any access to the local file system and native widget system.<br /><br />Our final constraint involved our open source ambitions for Google Chrome. We needed a rendering engine that was open source.<br /><br />WebKit became the obvious solution after talking to fellow engineers working on the Android project. They were already using WebKit (as it is a great option for mobile devices), and they trumpeted its speed, flexibility and simplicity. We routinely heard comments like "It's so easy to hack!" and "It didn't take me long to find my way around the code base."<br /><br />Our next step was to put together a test app, that allowed us to try WebKit out in a basic multi-process configuration. We were blown away by how fast WebKit could render pages! You can see a simple example of this in our <a href="//www.youtube.com/watch?v=1d1_ool4r7s">press conference video</a> (advance to the 38:30 mark). The bottom line: WebKit is a big reason why Chrome feels fast.<br /><br />We continued tracking the WebKit tip-of-tree during the development of Google Chrome. Now that Chromium.org is live, all of our source code is available there, and we are busily working to contribute our modifications back upstream to WebKit. We are excited about all the cool things coming in WebKit and can't wait to start helping out in a big way.<br /><br />Thanks again to everyone who worked on WebKit. You guys rock!<br /><br /><span class="post-author">Posted by Darin Fisher, Software Engineer<br /></span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </script> <noscript> Our recent launch of Google Chrome simply would not have been possible were it not for the awesome <a href="http://webkit.org/">WebKit</a> rendering engine and the <a href="//www.google.com/search?hl=en&q=cache:http://trac.webkit.org/wiki/WebKit%2520Team&btnG=Search">amazing team</a> behind it. We want to take a moment to recognize their excellent work (past and present!) and talk about how we arrived at incorporating WebKit into Google Chrome. By the way, that excellent <a href="http://twitter.com/perivision/statuses/907564759">web</a> <a href="http://twitter.com/mayhemchaos/statuses/908095530">inspector</a> <a href="http://twitter.com/JohnB/statuses/907242324">tool</a> is actually a <a href="http://webkit.org/blog/108/yet-another-one-more-thing-a-new-web-inspector/">component of WebKit</a> ;-)<br /><br />At the onset of the project, we knew we didn't want to create yet <span style="font-style: italic;">another</span> rendering engine. After all, web developers already have enough to worry about when it comes to making sure that all users can access their web pages and web applications. Being inside Google, where we develop lots of pages and webapps, we were very familiar with this problem!<br /><br />Yet, we also knew that we wanted to create a multi-process browser, which meant that our rendering engine needed to be very lightweight as we were going to be running many of them. Furthermore, in order to achieve our sandboxing objectives, the rendering engine needed to be stripped of any access to the local file system and native widget system.<br /><br />Our final constraint involved our open source ambitions for Google Chrome. We needed a rendering engine that was open source.<br /><br />WebKit became the obvious solution after talking to fellow engineers working on the Android project. They were already using WebKit (as it is a great option for mobile devices), and they trumpeted its speed, flexibility and simplicity. We routinely heard comments like "It's so easy to hack!" and "It didn't take me long to find my way around the code base."<br /><br />Our next step was to put together a test app, that allowed us to try WebKit out in a basic multi-process configuration. We were blown away by how fast WebKit could render pages! You can see a simple example of this in our <a href="//www.youtube.com/watch?v=1d1_ool4r7s">press conference video</a> (advance to the 38:30 mark). The bottom line: WebKit is a big reason why Chrome feels fast.<br /><br />We continued tracking the WebKit tip-of-tree during the development of Google Chrome. Now that Chromium.org is live, all of our source code is available there, and we are busily working to contribute our modifications back upstream to WebKit. We are excited about all the cool things coming in WebKit and can't wait to start helping out in a big way.<br /><br />Thanks again to everyone who worked on WebKit. You guys rock!<br /><br /><span class="post-author">Posted by Darin Fisher, Software Engineer<br /></span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </noscript> </div> </div> <div class='share'> <span class='twitter-custom social-wrapper' data-href='http://twitter.com/share?text=Chromium Blog:Chrome <3s WebKit&url=https://blog.chromium.org/2008/09/chrome-3s-webkit.html&via=ChromiumDev'> <img alt='Share on Twitter' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_twitter_black_24dp.png' width='24'/> </span> <span class='fb-custom social-wrapper' data-href='https://www.facebook.com/sharer.php?u=https://blog.chromium.org/2008/09/chrome-3s-webkit.html'> <img alt='Share on Facebook' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_facebook_black_24dp.png' width='24'/> </span> </div> <div class='post-footer'> <div class='cmt_iframe_holder' data-href='https://blog.chromium.org/2008/09/chrome-3s-webkit.html' data-viewtype='FILTERED_POSTMOD'></div> <a href='https://plus.google.com/112374322230920073195' rel='author' style='display:none;'> Google </a> <div class='label-footer'> </div> </div> </div> <div class='post' data-id='2826203398743548679' itemscope='' itemtype='http://schema.org/BlogPosting'> <h2 class='title' itemprop='name'> <a href='https://blog.chromium.org/2008/09/google-chromes-need-for-speed_02.html' itemprop='url' title='Google Chrome's Need for Speed'> Google Chrome's Need for Speed </a> </h2> <div class='post-header'> <div class='published'> <span class='publishdate' itemprop='datePublished'> Tuesday, September 2, 2008 </span> </div> </div> <div class='post-body'> <div class='post-content' itemprop='articleBody'> <script type='text/template'> Ever since we opened the Google office in Aarhus, Denmark, I've been bombarded with the same question. What kind of virtual machine are you working on? Finally, I'm able to answer.<br />It is an open source JavaScript engine and it is fast.<br /><br />A core part of any web browser is its JavaScript engine. Web applications cannot be responsive and stable without a fast and reliable JavaScript engine. Google Chrome features a new JavaScript engine, V8, that has been designed for performance from the ground up. In particular, we wanted to remove some common bottlenecks that limit the amount and complexity of JavaScript code that can be used in Web applications.<br /><br />The cornerstones of the V8 design are:<br /><ul><li>Compilation of JavaScript source code directly into native machine code.</li><li>An efficient memory management system resulting in fast object allocation and small garbage collection pauses.</li><li> Introduction of hidden classes and inline caches that speed up property access and function calls.</li></ul>Virtual machines for object oriented languages have in the past used inline caching to speed up execution. However, this relies on objects with similar structure share the same runtime type.<br />By dynamically creating hidden classes for JavaScript objects, V8 can apply optimizations only possible in virtual machines with runtime types.<br /><br />More design details can be found here: <a href="http://code.google.com/apis/v8/design.html">http://code.google.com/apis/v8/design.html</a>.<br /><br />Along with V8 we have released a benchmark suite that reflects the kind of code we want to run fast: well-structured object-based applications with abstraction layers and many property accesses. As Web applications grow, we believe this suite will be representative of how Web developers write JavaScript code.<br /><br />The V8 benchmark suite consists of five medium sized standalone JavaScript applications: Richards, DeltaBlue, Crypto, RayTrace, and EarleyBoyer. A total more than 11,000 lines of JavaScript code. Web applications often spend considerable time waiting for the network connection, manipulating the DOM, and rendering pages. The V8 benchmark suite only measures pure JavaScript execution. Visit <a href="http://code.google.com/apis/v8/benchmarks.html">http://code.google.com/apis/v8/benchmarks.html</a> to see how to run the suite.<br /><br />I hope the web community will adopt the code and the ideas we have developed to advance the performance of JavaScript. Raising the performance bar of JavaScript is important for continued innovation of web applications.<br /><br />V8 is an open source project and we encourage developers to visit <a href="http://code.google.com/p/v8">http://code.google.com/p/v8</a>.<br /><br /><font class="post-author">Posted by Lars Bak, Software Engineer </font> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </script> <noscript> Ever since we opened the Google office in Aarhus, Denmark, I've been bombarded with the same question. What kind of virtual machine are you working on? Finally, I'm able to answer.<br />It is an open source JavaScript engine and it is fast.<br /><br />A core part of any web browser is its JavaScript engine. Web applications cannot be responsive and stable without a fast and reliable JavaScript engine. Google Chrome features a new JavaScript engine, V8, that has been designed for performance from the ground up. In particular, we wanted to remove some common bottlenecks that limit the amount and complexity of JavaScript code that can be used in Web applications.<br /><br />The cornerstones of the V8 design are:<br /><ul><li>Compilation of JavaScript source code directly into native machine code.</li><li>An efficient memory management system resulting in fast object allocation and small garbage collection pauses.</li><li> Introduction of hidden classes and inline caches that speed up property access and function calls.</li></ul>Virtual machines for object oriented languages have in the past used inline caching to speed up execution. However, this relies on objects with similar structure share the same runtime type.<br />By dynamically creating hidden classes for JavaScript objects, V8 can apply optimizations only possible in virtual machines with runtime types.<br /><br />More design details can be found here: <a href="http://code.google.com/apis/v8/design.html">http://code.google.com/apis/v8/design.html</a>.<br /><br />Along with V8 we have released a benchmark suite that reflects the kind of code we want to run fast: well-structured object-based applications with abstraction layers and many property accesses. As Web applications grow, we believe this suite will be representative of how Web developers write JavaScript code.<br /><br />The V8 benchmark suite consists of five medium sized standalone JavaScript applications: Richards, DeltaBlue, Crypto, RayTrace, and EarleyBoyer. A total more than 11,000 lines of JavaScript code. Web applications often spend considerable time waiting for the network connection, manipulating the DOM, and rendering pages. The V8 benchmark suite only measures pure JavaScript execution. Visit <a href="http://code.google.com/apis/v8/benchmarks.html">http://code.google.com/apis/v8/benchmarks.html</a> to see how to run the suite.<br /><br />I hope the web community will adopt the code and the ideas we have developed to advance the performance of JavaScript. Raising the performance bar of JavaScript is important for continued innovation of web applications.<br /><br />V8 is an open source project and we encourage developers to visit <a href="http://code.google.com/p/v8">http://code.google.com/p/v8</a>.<br /><br /><font class="post-author">Posted by Lars Bak, Software Engineer </font> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </noscript> </div> </div> <div class='share'> <span class='twitter-custom social-wrapper' data-href='http://twitter.com/share?text=Chromium Blog:Google Chrome's Need for Speed&url=https://blog.chromium.org/2008/09/google-chromes-need-for-speed_02.html&via=ChromiumDev'> <img alt='Share on Twitter' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_twitter_black_24dp.png' width='24'/> </span> <span class='fb-custom social-wrapper' data-href='https://www.facebook.com/sharer.php?u=https://blog.chromium.org/2008/09/google-chromes-need-for-speed_02.html'> <img alt='Share on Facebook' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_facebook_black_24dp.png' width='24'/> </span> </div> <div class='post-footer'> <div class='cmt_iframe_holder' data-href='https://blog.chromium.org/2008/09/google-chromes-need-for-speed_02.html' data-viewtype='FILTERED_POSTMOD'></div> <a href='https://plus.google.com/112374322230920073195' rel='author' style='display:none;'> Google </a> <div class='label-footer'> </div> </div> </div> <div class='post' data-id='588666672787863513' itemscope='' itemtype='http://schema.org/BlogPosting'> <h2 class='title' itemprop='name'> <a href='https://blog.chromium.org/2008/09/welcome-to-chromium_02.html' itemprop='url' title='Welcome to Chromium'> Welcome to Chromium </a> </h2> <div class='post-header'> <div class='published'> <span class='publishdate' itemprop='datePublished'> Tuesday, September 2, 2008 </span> </div> </div> <div class='post-body'> <div class='post-content' itemprop='articleBody'> <script type='text/template'> <div>Today, Google launched a new web browser called <a href="//www.google.com/chrome">Google Chrome</a>. At the same time, we are releasing all of the code as open source under a permissive BSD license. The open source project is called Chromium - after the metal used to make chrome.</div><div><br /></div><div>Why did Google release the source code?</div><div><br /></div><div>Primarily it's because one of the fundamental goals of the Chromium project is to help drive the web forward. Open source projects like <a href="http://www.mozilla.org/">Firefox</a> and <a href="http://www.webkit.org/">WebKit</a> have led the way in defining the next generation of web technologies and standards, and we felt the best way we could help was to follow suit, and be as open as we could. To be clear, improving the web in this way also has some clear benefits for us as a company. With a richer set of APIs we can build more interesting apps allowing people to do more online. The more people do online, the more they can use our services. At any rate, we have worked on this project by ourselves for long enough - it's time for us to engage with the wider web community so that we can move on to the next set of challenges.</div><div><br /></div><div>We believe that open source works not only because it allows people to join us and improve our products, but also (and more importantly) because it means other projects are able to use the code we've developed. Where we've developed innovative new technology, we hope that other projects can use it to make their products better, just as we've been able to adopt code from other open source projects to make our product better.</div><div><br /></div><div>How will we be working with the open source community?</div><div><br /></div><div>To begin with, we are engaging with the WebKit community to integrate our patches back into the main line of WebKit development. Because of Chromium's unique <a href="http://dev.chromium.org/developers/design-documents/multi-process-architecture">multi-process architecture</a>, the integration of the <a href="http://code.google.com/p/v8/">V8 JavaScript engine</a>, and other factors, we've built a fairly significant port of WebKit on Windows, and are developing the same for Mac OS X and Linux. We want to make sure that we can find a productive way to integrate and sync up with the WebKit community in this effort as we move forward.</div><div><br /></div><div>Today, you can visit our project website at <a href="http://www.chromium.org/">www.chromium.org</a>, where you can get the latest source code or the freshest development build. If you're interested in keeping track of what's going on, you can join one of our <a href="http://dev.chromium.org/developers/discussion-groups">discussion groups</a>, where you can participate in development discussions and keep track of bugs as they're filed and fixed. Maybe you'll want to fix a few, too! You'll also find information on reporting bugs and all the various other aspects of the project. We hope you'll check it out!</div><div><br /></div><div>This is the Chromium blog. The posts here will be of a mostly technical nature, discussing the design theory and implementation details of work we've done or are doing. Over the next few weeks there'll be a number of posts that give a high level tour of the most important aspects of the browser.</div><div><br /></div><div>Finally, if you've not yet done so, take Google Chrome for a spin. You can download it from <a href="//www.google.com/chrome/">http://www.google.com/chrome/</a>.</div><div><br /></div><br /><span class="post-author">Posted by Ben Goodger, Software Engineer</span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </script> <noscript> <div>Today, Google launched a new web browser called <a href="//www.google.com/chrome">Google Chrome</a>. At the same time, we are releasing all of the code as open source under a permissive BSD license. The open source project is called Chromium - after the metal used to make chrome.</div><div><br /></div><div>Why did Google release the source code?</div><div><br /></div><div>Primarily it's because one of the fundamental goals of the Chromium project is to help drive the web forward. Open source projects like <a href="http://www.mozilla.org/">Firefox</a> and <a href="http://www.webkit.org/">WebKit</a> have led the way in defining the next generation of web technologies and standards, and we felt the best way we could help was to follow suit, and be as open as we could. To be clear, improving the web in this way also has some clear benefits for us as a company. With a richer set of APIs we can build more interesting apps allowing people to do more online. The more people do online, the more they can use our services. At any rate, we have worked on this project by ourselves for long enough - it's time for us to engage with the wider web community so that we can move on to the next set of challenges.</div><div><br /></div><div>We believe that open source works not only because it allows people to join us and improve our products, but also (and more importantly) because it means other projects are able to use the code we've developed. Where we've developed innovative new technology, we hope that other projects can use it to make their products better, just as we've been able to adopt code from other open source projects to make our product better.</div><div><br /></div><div>How will we be working with the open source community?</div><div><br /></div><div>To begin with, we are engaging with the WebKit community to integrate our patches back into the main line of WebKit development. Because of Chromium's unique <a href="http://dev.chromium.org/developers/design-documents/multi-process-architecture">multi-process architecture</a>, the integration of the <a href="http://code.google.com/p/v8/">V8 JavaScript engine</a>, and other factors, we've built a fairly significant port of WebKit on Windows, and are developing the same for Mac OS X and Linux. We want to make sure that we can find a productive way to integrate and sync up with the WebKit community in this effort as we move forward.</div><div><br /></div><div>Today, you can visit our project website at <a href="http://www.chromium.org/">www.chromium.org</a>, where you can get the latest source code or the freshest development build. If you're interested in keeping track of what's going on, you can join one of our <a href="http://dev.chromium.org/developers/discussion-groups">discussion groups</a>, where you can participate in development discussions and keep track of bugs as they're filed and fixed. Maybe you'll want to fix a few, too! You'll also find information on reporting bugs and all the various other aspects of the project. We hope you'll check it out!</div><div><br /></div><div>This is the Chromium blog. The posts here will be of a mostly technical nature, discussing the design theory and implementation details of work we've done or are doing. Over the next few weeks there'll be a number of posts that give a high level tour of the most important aspects of the browser.</div><div><br /></div><div>Finally, if you've not yet done so, take Google Chrome for a spin. You can download it from <a href="//www.google.com/chrome/">http://www.google.com/chrome/</a>.</div><div><br /></div><br /><span class="post-author">Posted by Ben Goodger, Software Engineer</span> <span itemprop='author' itemscope='itemscope' itemtype='http://schema.org/Person'> <meta content='https://plus.google.com/116899029375914044550' itemprop='url'/> </span> </noscript> </div> </div> <div class='share'> <span class='twitter-custom social-wrapper' data-href='http://twitter.com/share?text=Chromium Blog:Welcome to Chromium&url=https://blog.chromium.org/2008/09/welcome-to-chromium_02.html&via=ChromiumDev'> <img alt='Share on Twitter' height='24' src='https://www.gstatic.com/images/icons/material/system/2x/post_twitter_black_24dp.png' width='24'/> </span> <span class='fb-custom social-wrapper' data-href='https://www.facebook.com/sharer.php?u=https://blog.chromium.org/2008/09/welcome-to-chromium_02.html'> <img alt='Share on Facebook' height='24' 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dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/billing'> billing </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/birthday'> birthday </a> <span dir='ltr'> 4 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/blink'> blink </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/browser'> browser </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/browser%20interoperability'> browser interoperability </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/bundles'> bundles </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/capabilities'> capabilities </a> <span dir='ltr'> 6 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/capable%20web'> capable web </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/cds'> cds </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/cds18'> cds18 </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/cds2018'> cds2018 </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/chrome'> chrome </a> <span dir='ltr'> 35 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/chrome%2081'> chrome 81 </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/chrome%2083'> chrome 83 </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/chrome%2084'> chrome 84 </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/chrome%20ads'> chrome ads </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/chrome%20apps'> chrome apps </a> <span dir='ltr'> 5 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Chrome%20dev'> Chrome dev </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/chrome%20dev%20summit'> chrome dev summit </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/chrome%20dev%20summit%202018'> chrome dev summit 2018 </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/chrome%20dev%20summit%202019'> chrome dev summit 2019 </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/chrome%20developer'> chrome developer </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Chrome%20Developer%20Center'> Chrome Developer Center </a> <span dir='ltr'> 1 </span> 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href='https://blog.chromium.org/search/label/chromedevtools'> chromedevtools </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/chromeframe'> chromeframe </a> <span dir='ltr'> 3 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/chromeos'> chromeos </a> <span dir='ltr'> 4 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/chromeos.dev'> chromeos.dev </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/chromium'> chromium </a> <span dir='ltr'> 9 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/cloud%20print'> cloud print </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/coalition'> coalition </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/coalition%20for%20better%20ads'> coalition for better ads </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/contact%20picker'> contact picker </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/content%20indexing'> content indexing </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/cookies'> cookies </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/core%20web%20vitals'> core web vitals </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/csrf'> csrf </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/css'> css </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/cumulative%20layout%20shift'> cumulative layout shift </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/custom%20tabs'> custom tabs </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/dart'> dart </a> <span dir='ltr'> 8 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/dashboard'> dashboard </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Data%20Saver'> Data Saver </a> <span dir='ltr'> 3 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Data%20saver%20desktop%20extension'> Data saver desktop extension </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/day%202'> day 2 </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/deceptive%20installation'> deceptive installation </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' 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href='https://blog.chromium.org/search/label/discoverability'> discoverability </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/DNS-over-HTTPS'> DNS-over-HTTPS </a> <span dir='ltr'> 4 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/DoH'> DoH </a> <span dir='ltr'> 4 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/emoji'> emoji </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/emscriptem'> emscriptem </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/enterprise'> enterprise </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/extensions'> extensions </a> <span dir='ltr'> 27 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Fast%20badging'> Fast badging </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/faster%20web'> faster web </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/features'> features </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/feedback'> feedback </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/field%20data'> field data </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/first%20input%20delay'> first input delay </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Follow'> Follow </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/fonts'> fonts </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/form%20controls'> form controls </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/frameworks'> frameworks </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/fugu'> fugu </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/fund'> fund </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/funding'> funding </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/gdd'> gdd </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/google%20earth'> google earth </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/google%20event'> google event </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/google%20io%202019'> google io 2019 </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/google%20web%20developer'> google web developer </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/googlechrome'> googlechrome </a> <span dir='ltr'> 12 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/harmful%20ads'> harmful ads </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/html5'> html5 </a> <span dir='ltr'> 11 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/HTTP%2F3'> HTTP/3 </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/HTTPS'> HTTPS </a> <span dir='ltr'> 4 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/iframes'> iframes </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/images'> images </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/incognito'> incognito </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/insecure%20forms'> insecure forms </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/intent%20to%20explain'> intent to explain </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/ios'> ios </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/ios%20Chrome'> ios Chrome </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/issue%20tracker'> issue tracker </a> <span dir='ltr'> 3 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/jank'> jank </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/javascript'> javascript </a> <span dir='ltr'> 5 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/lab%20data'> lab data </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/labelling'> labelling </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/largest%20contentful%20paint'> largest contentful paint </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/launch'> launch </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/lazy-loading'> lazy-loading </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/lighthouse'> lighthouse </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/linux'> linux </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Lite%20Mode'> Lite Mode </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Lite%20pages'> Lite pages </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/loading%20interventions'> loading interventions </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/loading%20optimizations'> loading optimizations </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/lock%20icon'> lock icon </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/long-tail'> long-tail </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/mac'> mac </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/manifest%20v3'> manifest v3 </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/metrics'> metrics </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/microsoft%20edge'> microsoft edge </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/mixed%20forms'> mixed forms </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/mobile'> mobile </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/na'> na </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/native%20client'> native client </a> <span dir='ltr'> 8 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/native%20file%20system'> native file system </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/New%20Features'> New Features </a> <span dir='ltr'> 5 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/notifications'> notifications </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/octane'> octane </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/open%20web'> open web </a> <span dir='ltr'> 4 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/origin%20trials'> origin trials </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/pagespeed%20insights'> pagespeed insights </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/pagespeedinsights'> pagespeedinsights </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/passwords'> passwords </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/payment%20handler'> payment handler </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/payment%20request'> payment request </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/payments'> payments </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/performance'> performance </a> <span dir='ltr'> 20 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/performance%20tools'> performance tools </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/permission%20UI'> permission UI </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/permissions'> permissions </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/play%20store'> play store </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/portals'> portals </a> <span dir='ltr'> 3 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/prefetching'> prefetching </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/privacy'> privacy </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/privacy%20sandbox'> privacy sandbox </a> <span dir='ltr'> 4 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/private%20prefetch%20proxy'> private prefetch proxy </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/profile%20guided%20optimization'> profile guided optimization </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/progressive%20web%20apps'> progressive web apps </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Project%20Strobe'> Project Strobe </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/protection'> protection </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/pwa'> pwa </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/QUIC'> QUIC </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/quieter%20permissions'> quieter permissions </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/releases'> releases </a> <span dir='ltr'> 3 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/removals'> removals </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/rlz'> rlz </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/root%20program'> root program </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/safe%20browsing'> safe browsing </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/Secure%20DNS'> Secure DNS </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/security'> security </a> <span dir='ltr'> 36 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/site%20isolation'> site isolation </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/slow%20loading'> slow loading </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/sms%20receiver'> sms receiver </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/spam%20policy'> spam policy </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/spdy'> spdy </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/spectre'> spectre </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/speed'> speed </a> <span dir='ltr'> 4 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/ssl'> ssl </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/store%20listing'> store listing </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/strobe'> strobe </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/subscription%20pages'> subscription pages </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/suspicious%20site%20reporter%20extension'> suspicious site reporter extension </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/TCP'> TCP </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/the%20fast%20and%20the%20curious'> the fast and the curious </a> <span dir='ltr'> 23 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/TLS'> TLS </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/tools'> tools </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/tracing'> tracing </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/transparency'> transparency </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/trusted%20web%20activities'> trusted web activities </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/twa'> twa </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/user%20agent%20string'> user agent string </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/user%20data%20policy'> user data policy </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/v8'> v8 </a> <span dir='ltr'> 6 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/video'> video </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/wasm'> wasm </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web'> web </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20apps'> web apps </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20assembly'> web assembly </a> <span dir='ltr'> 2 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20developers'> web developers </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20intents'> web intents </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20packaging'> web packaging </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20payments'> web payments </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20platform'> web platform </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20request%20api'> web request api </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web%20vitals'> web vitals </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web.dev'> web.dev </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/web.dev%20live'> web.dev live </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/webapi'> webapi </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/webassembly'> webassembly </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/webaudio'> webaudio </a> <span dir='ltr'> 3 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/webgl'> webgl </a> <span dir='ltr'> 7 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/webkit'> webkit </a> <span dir='ltr'> 5 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/WebM'> WebM </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/webmaster'> webmaster </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/webp'> webp </a> <span dir='ltr'> 5 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/webrtc'> webrtc </a> <span dir='ltr'> 6 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/websockets'> websockets </a> <span dir='ltr'> 5 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/webtiming'> webtiming </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/writable-files'> writable-files </a> <span dir='ltr'> 1 </span> </li> <li> <a dir='ltr' href='https://blog.chromium.org/search/label/yerba%20beuna%20center%20for%20the%20arts'> yerba beuna center for the arts </a> <span dir='ltr'> 1 </span> </li> </ul> <div class='clear'></div> </div> </div><div class='widget BlogArchive' data-version='1' id='BlogArchive1'> <div class='tab'> <i class='material-icons icon'>  </i> <h2> Archive </h2> <i class='material-icons arrow'>  </i> </div> <div class='widget-content'> <div id='ArchiveList'> <div id='BlogArchive1_ArchiveList'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2025/'> 2025 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2025/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span 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class=''> <a class='post-count-link' href='https://blog.chromium.org/2024/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2024/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2024/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2024/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2023/'> 2023 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2023/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2023/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2023/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2023/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2023/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2023/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2023/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2023/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2022/'> 2022 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2022/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2022/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2022/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2022/06/'> Jun </a> </div> <div class='items'> 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Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2021/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2021/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2021/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2021/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2021/05/'> May </a> 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class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2020/'> 2020 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2020/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2020/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2020/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2020/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2020/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2020/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2020/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2020/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2020/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2020/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2020/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2020/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2019/'> 2019 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2019/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2019/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2019/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2019/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> 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class=''> <a class='post-count-link' href='https://blog.chromium.org/2019/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2019/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2019/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2018/'> 2018 </a> </div> <div class='items'> <ul class='hierarchy'> 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class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2018/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2018/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2018/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2018/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2018/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2018/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2018/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2017/'> 2017 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2017/12/'> Dec </a> </div> <div class='items'> 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</ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2017/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2016/'> 2016 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2016/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2016/11/'> Nov </a> 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class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2015/'> 2015 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2015/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2014/'> 2014 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2014/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2014/11/'> Nov </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2014/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2014/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> 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class=''> <a class='post-count-link' href='https://blog.chromium.org/2014/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2014/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2014/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2013/'> 2013 </a> </div> <div class='items'> <ul class='hierarchy'> 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class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2013/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2013/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2012/'> 2012 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2012/12/'> Dec </a> </div> <div class='items'> 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</li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2012/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2012/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2012/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2012/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2012/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2012/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> <span class='new-toggle' href='javascript:void(0)'> <i class='material-icons arrow'>  </i> </span> <a class='toggle' href='javascript:void(0)' style='display: none'> <span class='zippy'> <i class='material-icons'>  </i>   </span> </a> <a class='post-count-link' href='https://blog.chromium.org/2011/'> 2011 </a> </div> <div class='items'> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/12/'> Dec </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/11/'> Nov </a> 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<div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2011/01/'> Jan </a> </div> <div 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href='https://blog.chromium.org/2010/10/'> Oct </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/09/'> Sep </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/08/'> Aug </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/07/'> Jul </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/06/'> Jun </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/05/'> May </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/04/'> Apr </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/03/'> Mar </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/02/'> Feb </a> </div> <div class='items'> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class=''> <a class='post-count-link' href='https://blog.chromium.org/2010/01/'> Jan </a> </div> <div class='items'> </div> </li> </ul> </div> </li> </ul> <ul class='hierarchy'> <li class='archivedate collapsed'> <div class='intervalToggle'> 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