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Firefox</a> </nav> </div> </header>  <main id="content-main" class="section"> <h1 class="page-title"> Articles by Christian Holler </h1> <ul class="article-list"> <li class="list-item row listing"> <img alt='Avatar photo' src='https://hacks.mozilla.org/wp-content/uploads/2024/06/cropped-export2-small-square-72x72.jpg' srcset='https://hacks.mozilla.org/wp-content/uploads/2024/06/cropped-export2-small-square-144x144.jpg 2x' class='avatar avatar-72 photo' height='72' width='72' loading='lazy' decoding='async'/> <div class="block block--1"> <h3 class="post__title"> <a href="https://hacks.mozilla.org/2024/06/snapshots-for-ipc-fuzzing/">Snapshots for IPC Fuzzing</a> </h3> <p class="post__tease">Process separation remains one of the most important parts of the Firefox security model and securing our IPC (Inter-Process Communication) interfaces is crucial to keep privileges in the different processes separated. We take a more detailed look at our newest tool for finding vulnerabilities in these interfaces – snapshot fuzzing.</p> <div class="post__meta"> Posted on <abbr class="published" title="2024-06-27T09:18:49-07:00"> June 27, 2024 </abbr> </div> </div> </li> <li class="list-item row listing"> <img alt='Avatar photo' src='https://hacks.mozilla.org/wp-content/uploads/2024/06/cropped-export2-small-square-72x72.jpg' srcset='https://hacks.mozilla.org/wp-content/uploads/2024/06/cropped-export2-small-square-144x144.jpg 2x' class='avatar avatar-72 photo' height='72' width='72' loading='lazy' decoding='async'/> <div class="block block--1"> <h3 class="post__title"> <a href="https://hacks.mozilla.org/2022/02/retrospective-and-technical-details-on-the-recent-firefox-outage/">Retrospective and Technical Details on the recent Firefox Outage</a> </h3> <p class="post__tease">On January 13th 2022, Firefox became unusable for close to two hours for users worldwide. This incident interrupted many people’s workflow. This post highlights the complex series of events and circumstances that, together, triggered a bug deep in the networking code of Firefox.</p> <div class="post__meta"> Posted on <abbr class="published" title="2022-02-02T01:00:50-08:00"> February 2, 2022 </abbr> </div> </div> </li> <li class="list-item row listing"> <img alt='Avatar photo' src='https://hacks.mozilla.org/wp-content/uploads/2024/06/cropped-export2-small-square-72x72.jpg' srcset='https://hacks.mozilla.org/wp-content/uploads/2024/06/cropped-export2-small-square-144x144.jpg 2x' class='avatar avatar-72 photo' height='72' width='72' loading='lazy' decoding='async'/> <div class="block block--1"> <h3 class="post__title"> <a href="https://hacks.mozilla.org/2021/04/eliminating-data-races-in-firefox-a-technical-report/">Eliminating Data Races in Firefox – A Technical Report</a> </h3> <p class="post__tease">We successfully deployed ThreadSanitizer in the Firefox project to eliminate data races in our remaining C/C++ components. In the process, we found several impactful bugs and can safely say that data races are often underestimated in terms of their impact on program correctness. We recommend that all multithreaded C/C++ projects adopt the ThreadSanitizer tool to enhance code quality.</p> <div class="post__meta"> Posted on <abbr class="published" title="2021-04-06T08:21:46-07:00"> April 6, 2021 </abbr> </div> </div> </li> </ul> <hr class="dino"> </main> <footer class="footer section section--fullwidth"> <div class="row"> <p class="block block--1"> Except where otherwise noted, content on this site is licensed under the <a href="https://creativecommons.org/licenses/by-sa/3.0/" rel="license external">Creative Commons Attribution Share-Alike License v3.0</a> or any later version. </p> <img class="footer__logo" alt="the Mozilla dino logo" src="https://hacks.mozilla.org/wp-content/themes/Hax/img/dino.svg"> </div> </footer> </div> <script> // External links should open in a new tab. 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