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Firefox 130 was released on <a href="https://whattrainisitnow.com/release/?version=130" class="external" target="_blank">September 3, 2024</a>.</p></div><section aria-labelledby="changes_for_web_developers"><h2 id="changes_for_web_developers"><a href="#changes_for_web_developers">Changes for web developers</a></h2><div class="section-content"></div></section><section aria-labelledby="html"><h3 id="html"><a href="#html">HTML</a></h3><div class="section-content"><ul> <li>The <a href="/en-US/docs/Web/HTML/Element/details#name"><code>name</code></a> attribute of the <code><details></code> element now allows the grouping of <code><details></code> elements, where only one element within a group can be open at a time. This allows you to create an exclusive accordion without using JavaScript (<a href="https://bugzil.la/1856460" class="external" target="_blank">Firefox bug 1856460</a> and <a href="https://bugzil.la/1909613" class="external" target="_blank">Firefox bug 1909613</a>).</li> <li>The <a href="/en-US/docs/Web/HTML/Global_attributes/dir"><code>dir</code></a> and <a href="/en-US/docs/Web/HTML/Global_attributes/lang"><code>lang</code></a> <a href="/en-US/docs/Web/HTML/Global_attributes">global attributes</a> now have improved inheritance, including how they work with <a href="/en-US/docs/Web/API/Web_components/Using_shadow_DOM#attribute_inheritance">shadow DOM</a> (<a href="https://bugzil.la/1876163" class="external" target="_blank">Firefox bug 1876163</a>).</li> </ul></div></section><section aria-labelledby="css"><h3 id="css"><a href="#css">CSS</a></h3><div class="section-content"><ul> <li>The <a href="/en-US/docs/Web/CSS/hyphens"><code>hyphens</code></a> CSS property is now properly supported for Czech and Slovak languages. Among other things, this ensures that words will no longer split on syllables (<a href="https://bugzil.la/1908931" class="external" target="_blank">Firefox bug 1908931</a>).</li> </ul></div></section><section aria-labelledby="apis"><h3 id="apis"><a href="#apis">APIs</a></h3><div class="section-content"><ul> <li>The <a href="/en-US/docs/Web/API/SubtleCrypto/deriveKey#x25519">X25519</a> digital signature algorithm is supported by the <a href="/en-US/docs/Web/API/Web_Crypto_API">Web Crypto API</a>, and can be used in the <a href="/en-US/docs/Web/API/SubtleCrypto"><code>SubtleCrypto</code></a> methods: <a href="/en-US/docs/Web/API/SubtleCrypto/deriveKey" title="deriveKey()"><code>deriveKey()</code></a>, <a href="/en-US/docs/Web/API/SubtleCrypto/deriveBits" title="deriveBits()"><code>deriveBits()</code></a>, <a href="/en-US/docs/Web/API/SubtleCrypto/generateKey" title="generateKey()"><code>generateKey()</code></a>, <a href="/en-US/docs/Web/API/SubtleCrypto/importKey" title="importKey()"><code>importKey()</code></a> and <a href="/en-US/docs/Web/API/SubtleCrypto/exportKey" title="exportKey()"><code>exportKey()</code></a> (<a href="https://bugzil.la/1904836" class="external" target="_blank">Firefox bug 1904836</a>).</li> <li>The <a href="/en-US/docs/Web/API/WebCodecs_API">Web Codecs API</a> is supported on desktop releases, giving web developers low-level access to the individual frames of a video stream and chunks of audio. Android support is enabled in the Nightly release. The new interfaces include: <a href="/en-US/docs/Web/API/VideoEncoder"><code>VideoEncoder</code></a>, <a href="/en-US/docs/Web/API/VideoDecoder"><code>VideoDecoder</code></a>, <a href="/en-US/docs/Web/API/EncodedVideoChunk"><code>EncodedVideoChunk</code></a>, <a href="/en-US/docs/Web/API/VideoFrame"><code>VideoFrame</code></a>, <a href="/en-US/docs/Web/API/VideoColorSpace"><code>VideoColorSpace</code></a>, <a href="/en-US/docs/Web/API/AudioEncoder"><code>AudioEncoder</code></a>, <a href="/en-US/docs/Web/API/EncodedAudioChunk"><code>EncodedAudioChunk</code></a>, <a href="/en-US/docs/Web/API/AudioData"><code>AudioData</code></a>, and <a href="/en-US/docs/Web/API/AudioDecoder"><code>AudioDecoder</code></a>. (<a href="https://bugzil.la/1908572" class="external" target="_blank">Firefox bug 1908572</a>).</li> </ul> <h4 id="removals">Removals</h4> <ul> <li><a href="/en-US/docs/Web/API/WebGLRenderingContext/drawingBufferColorSpace"><code>WebGLRenderingContext.drawingBufferColorSpace</code></a> and <a href="/en-US/docs/Web/API/WebGL2RenderingContext"><code>WebGL2RenderingContext.drawingBufferColorSpace</code></a> were prematurely released (without an an implementation) in <a href="/en-US/docs/Mozilla/Firefox/Releases/127">Firefox 127</a>, and have been removed (<a href="https://bugzil.la/1909559" class="external" target="_blank">Firefox bug 1909559</a>).</li> </ul></div></section><section aria-labelledby="webassembly"><h3 id="webassembly"><a href="#webassembly">WebAssembly</a></h3><div class="section-content"><h4 id="general">General</h4> <ul> <li>System add-ons are now completely disabled by default (<a href="https://bugzil.la/1904310" class="external" target="_blank">Firefox bug 1904310</a>).</li> <li>Fixed an issue with the internal prompt listener to correctly select the appropriate user prompt on Android (<a href="https://bugzil.la/1902264" class="external" target="_blank">Firefox bug 1902264</a>).</li> </ul> <h4 id="webdriver_bidi">WebDriver BiDi</h4> <ul> <li>Added support for the <code>browsingContext.navigationFailed</code> event, which is triggered when a navigation attempt fails to complete (<a href="https://bugzil.la/1846601" class="external" target="_blank">Firefox bug 1846601</a>).</li> <li>The <code>network.setCacheBehavior</code> command now allows defining the network cache behavior both globally and for individual navigables simultaneously (<a href="https://bugzil.la/1905307" class="external" target="_blank">Firefox bug 1905307</a>).</li> <li>The <code>network.responseCompleted</code> and <code>network.fetchError</code>events are now emitted when the actual request stops, eliminating a race condition where <code>browsingContext.domContentLoaded</code> and <code>browsingContext.load</code> events were emitted before the <code>network.responseCompleted</code> event (<a href="https://bugzil.la/1882803" class="external" target="_blank">Firefox bug 1882803</a>).</li> <li>Data URLs (e.g., for background images or fetch requests) are now fully supported across all network events (<a href="https://bugzil.la/1904343" class="external" target="_blank">Firefox bug 1904343</a>).</li> <li>Fixed an issue where the <code>network.authRequired</code> event was sent out multiple times with each call to the <code>network.continueWithAuth</code> command (<a href="https://bugzil.la/1899711" class="external" target="_blank">Firefox bug 1899711</a>).</li> </ul> <h4 id="marionette">Marionette</h4> <ul> <li>Fixed an issue in <code>WebDriver:ElementSendKeys</code> so that it only scrolls the element into view if it is not already visible (<a href="https://bugzil.la/1906095" class="external" target="_blank">Firefox bug 1906095</a>).</li> </ul></div></section><section aria-labelledby="changes_for_add-on_developers"><h2 id="changes_for_add-on_developers"><a href="#changes_for_add-on_developers">Changes for add-on developers</a></h2><div class="section-content"><ul> <li>The <code>options</code> parameter of <a href="/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/getSecurityInfo"><code>webRequest.getSecurityInfo</code></a> is now optional (<a href="https://bugzil.la/1909474" class="external" target="_blank">Firefox bug 1909474</a>).</li> <li><a href="/en-US/docs/Mozilla/Add-ons/WebExtensions/API/runtime/getURL"><code>runtime.getURL</code></a> (and the deprecated <a href="/en-US/docs/Mozilla/Add-ons/WebExtensions/API/extension/getURL"><code>extension.getURL</code></a>) now always prepended the extension origin to the path, without further normalization. Previously, when an absolute URL was provided, instead of a relatively URL, the absolute URL was returned. (<a href="https://bugzil.la/1795082" class="external" target="_blank">Firefox bug 1795082</a>).</li> </ul></div></section><section aria-labelledby="experimental_web_features"><h2 id="experimental_web_features"><a href="#experimental_web_features">Experimental web features</a></h2><div class="section-content"><p>These features are newly shipped in Firefox 130 but are disabled by default. To experiment with them, search for the appropriate preference on the <code>about:config</code> page and set it to <code>true</code>. You can find more such features on the <a href="/en-US/docs/Mozilla/Firefox/Experimental_features">Experimental features</a> page.</p> <ul> <li> <p><strong>Request video frame callback:</strong> <code>media.rvfc.enabled</code>.</p> <p>The <a href="/en-US/docs/Web/API/HTMLVideoElement/requestVideoFrameCallback" title="requestVideoFrameCallback()"><code>requestVideoFrameCallback()</code></a> method of the <a href="/en-US/docs/Web/API/HTMLVideoElement"><code>HTMLVideoElement</code></a> interface registers a callback function that runs when a new video frame is sent to the compositor. This enables developers to perform efficient operations on each video frame, such as video analysis, painting to a canvas, synchronization with external audio sources, and so on. The method returns a callback handle that can be passed to <a href="/en-US/docs/Web/API/HTMLVideoElement/cancelVideoFrameCallback"><code>HTMLVideoElement.cancelVideoFrameCallback()</code></a> in order to cancel the outstanding callback request. Both methods are enabled by default on the nightly build. (<a href="https://bugzil.la/1800882" class="external" target="_blank">Firefox bug 1800882</a>).</p> </li> <li> <p><strong>CSP violation reports using the Reporting API:</strong> <code>dom.reporting.enabled</code>.</p> <p>The <a href="/en-US/docs/Web/API/Reporting_API">Reporting API</a> can be used for reporting <a href="/en-US/docs/Web/HTTP/CSP">Content Security Policy (CSP)</a> violations. This includes support for <a href="/en-US/docs/Web/API/Report"><code>Report</code></a> objects that have a <code>type</code> property with the value <code>"csp-violation"</code> and <code>body</code> property that is an instance of the <a href="/en-US/docs/Web/API/CSPViolationReportBody"><code>CSPViolationReportBody</code></a> interface, the <a href="/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/report-to"><code>report-to</code></a> directive of the <a href="/en-US/docs/Web/HTTP/Headers/Content-Security-Policy"><code>Content-Security-Policy</code></a> HTTP response header, and the <a href="/en-US/docs/Web/HTTP/Headers/Reporting-Endpoints"><code>Reporting-Endpoints</code></a> and <a href="/en-US/docs/Web/HTTP/Headers/Report-To"><code>Report-To</code></a> HTTP response headers. This feature is disabled by default. (<a href="https://bugzil.la/1391243" class="external" target="_blank">Firefox bug 1391243</a>).</p> </li> </ul></div></section><section aria-labelledby="older_versions"><h2 id="older_versions"><a href="#older_versions">Older versions</a></h2><div class="section-content"><div class="multiColumnList"><ul><li><a href="/en-US/docs/Mozilla/Firefox/Releases/129">Firefox 129 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/128">Firefox 128 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/127">Firefox 127 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/126">Firefox 126 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/125">Firefox 125 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/124">Firefox 124 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/123">Firefox 123 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/122">Firefox 122 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/121">Firefox 121 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/120">Firefox 120 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/119">Firefox 119 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/118">Firefox 118 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/117">Firefox 117 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/116">Firefox 116 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/115">Firefox 115 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/114">Firefox 114 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/113">Firefox 113 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/112">Firefox 112 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/111">Firefox 111 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/110">Firefox 110 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/109">Firefox 109 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/108">Firefox 108 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/107">Firefox 107 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/106">Firefox 106 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/105">Firefox 105 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/104">Firefox 104 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/103">Firefox 103 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/102">Firefox 102 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/101">Firefox 101 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox/Releases/100">Firefox 100 for 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Content available under <a href="/en-US/docs/MDN/Writing_guidelines/Attrib_copyright_license">a Creative Commons license</a>.</p></div></div></footer></div><script type="application/json" id="hydration">{"url":"/en-US/docs/Mozilla/Firefox/Releases/130","doc":{"body":[{"type":"prose","value":{"id":null,"title":null,"isH3":false,"content":"<p>This article provides information about the changes in Firefox 130 that affect developers. Firefox 130 was released on <a href=\"https://whattrainisitnow.com/release/?version=130\" class=\"external\" target=\"_blank\">September 3, 2024</a>.</p>"}},{"type":"prose","value":{"id":"changes_for_web_developers","title":"Changes for web developers","isH3":false,"content":""}},{"type":"prose","value":{"id":"html","title":"HTML","isH3":true,"content":"<ul>\n<li>The <a href=\"/en-US/docs/Web/HTML/Element/details#name\"><code>name</code></a> attribute of the <code><details></code> element now allows the grouping of <code><details></code> elements, where only one element within a group can be open at a time. This allows you to create an exclusive accordion without using JavaScript (<a href=\"https://bugzil.la/1856460\" class=\"external\" target=\"_blank\">Firefox bug 1856460</a> and <a href=\"https://bugzil.la/1909613\" class=\"external\" target=\"_blank\">Firefox bug 1909613</a>).</li>\n<li>The <a href=\"/en-US/docs/Web/HTML/Global_attributes/dir\"><code>dir</code></a> and <a href=\"/en-US/docs/Web/HTML/Global_attributes/lang\"><code>lang</code></a> <a href=\"/en-US/docs/Web/HTML/Global_attributes\">global attributes</a> now have improved inheritance, including how they work with <a href=\"/en-US/docs/Web/API/Web_components/Using_shadow_DOM#attribute_inheritance\">shadow DOM</a> (<a href=\"https://bugzil.la/1876163\" class=\"external\" target=\"_blank\">Firefox bug 1876163</a>).</li>\n</ul>"}},{"type":"prose","value":{"id":"css","title":"CSS","isH3":true,"content":"<ul>\n<li>The <a href=\"/en-US/docs/Web/CSS/hyphens\"><code>hyphens</code></a> CSS property is now properly supported for Czech and Slovak languages.\nAmong other things, this ensures that words will no longer split on syllables (<a href=\"https://bugzil.la/1908931\" class=\"external\" target=\"_blank\">Firefox bug 1908931</a>).</li>\n</ul>"}},{"type":"prose","value":{"id":"apis","title":"APIs","isH3":true,"content":"<ul>\n<li>The <a href=\"/en-US/docs/Web/API/SubtleCrypto/deriveKey#x25519\">X25519</a> digital signature algorithm is supported by the <a href=\"/en-US/docs/Web/API/Web_Crypto_API\">Web Crypto API</a>, and can be used in the <a href=\"/en-US/docs/Web/API/SubtleCrypto\"><code>SubtleCrypto</code></a> methods: <a href=\"/en-US/docs/Web/API/SubtleCrypto/deriveKey\" title=\"deriveKey()\"><code>deriveKey()</code></a>, <a href=\"/en-US/docs/Web/API/SubtleCrypto/deriveBits\" title=\"deriveBits()\"><code>deriveBits()</code></a>, <a href=\"/en-US/docs/Web/API/SubtleCrypto/generateKey\" title=\"generateKey()\"><code>generateKey()</code></a>, <a href=\"/en-US/docs/Web/API/SubtleCrypto/importKey\" title=\"importKey()\"><code>importKey()</code></a> and <a href=\"/en-US/docs/Web/API/SubtleCrypto/exportKey\" title=\"exportKey()\"><code>exportKey()</code></a> (<a href=\"https://bugzil.la/1904836\" class=\"external\" target=\"_blank\">Firefox bug 1904836</a>).</li>\n<li>The <a href=\"/en-US/docs/Web/API/WebCodecs_API\">Web Codecs API</a> is supported on desktop releases, giving web developers low-level access to the individual frames of a video stream and chunks of audio. Android support is enabled in the Nightly release. The new interfaces include: <a href=\"/en-US/docs/Web/API/VideoEncoder\"><code>VideoEncoder</code></a>, <a href=\"/en-US/docs/Web/API/VideoDecoder\"><code>VideoDecoder</code></a>, <a href=\"/en-US/docs/Web/API/EncodedVideoChunk\"><code>EncodedVideoChunk</code></a>, <a href=\"/en-US/docs/Web/API/VideoFrame\"><code>VideoFrame</code></a>, <a href=\"/en-US/docs/Web/API/VideoColorSpace\"><code>VideoColorSpace</code></a>, <a href=\"/en-US/docs/Web/API/AudioEncoder\"><code>AudioEncoder</code></a>, <a href=\"/en-US/docs/Web/API/EncodedAudioChunk\"><code>EncodedAudioChunk</code></a>, <a href=\"/en-US/docs/Web/API/AudioData\"><code>AudioData</code></a>, and <a href=\"/en-US/docs/Web/API/AudioDecoder\"><code>AudioDecoder</code></a>. (<a href=\"https://bugzil.la/1908572\" class=\"external\" target=\"_blank\">Firefox bug 1908572</a>).</li>\n</ul>\n<h4 id=\"removals\">Removals</h4>\n<ul>\n<li><a href=\"/en-US/docs/Web/API/WebGLRenderingContext/drawingBufferColorSpace\"><code>WebGLRenderingContext.drawingBufferColorSpace</code></a> and <a href=\"/en-US/docs/Web/API/WebGL2RenderingContext\"><code>WebGL2RenderingContext.drawingBufferColorSpace</code></a> were prematurely released (without an an implementation) in <a href=\"/en-US/docs/Mozilla/Firefox/Releases/127\">Firefox 127</a>, and have been removed (<a href=\"https://bugzil.la/1909559\" class=\"external\" target=\"_blank\">Firefox bug 1909559</a>).</li>\n</ul>"}},{"type":"prose","value":{"id":"webassembly","title":"WebAssembly","isH3":true,"content":"<h4 id=\"general\">General</h4>\n<ul>\n<li>System add-ons are now completely disabled by default (<a href=\"https://bugzil.la/1904310\" class=\"external\" target=\"_blank\">Firefox bug 1904310</a>).</li>\n<li>Fixed an issue with the internal prompt listener to correctly select the appropriate user prompt on Android (<a href=\"https://bugzil.la/1902264\" class=\"external\" target=\"_blank\">Firefox bug 1902264</a>).</li>\n</ul>\n<h4 id=\"webdriver_bidi\">WebDriver BiDi</h4>\n<ul>\n<li>Added support for the <code>browsingContext.navigationFailed</code> event, which is triggered when a navigation attempt fails to complete (<a href=\"https://bugzil.la/1846601\" class=\"external\" target=\"_blank\">Firefox bug 1846601</a>).</li>\n<li>The <code>network.setCacheBehavior</code> command now allows defining the network cache behavior both globally and for individual navigables simultaneously (<a href=\"https://bugzil.la/1905307\" class=\"external\" target=\"_blank\">Firefox bug 1905307</a>).</li>\n<li>The <code>network.responseCompleted</code> and <code>network.fetchError</code>events are now emitted when the actual request stops, eliminating a race condition where <code>browsingContext.domContentLoaded</code> and <code>browsingContext.load</code> events were emitted before the <code>network.responseCompleted</code> event (<a href=\"https://bugzil.la/1882803\" class=\"external\" target=\"_blank\">Firefox bug 1882803</a>).</li>\n<li>Data URLs (e.g., for background images or fetch requests) are now fully supported across all network events (<a href=\"https://bugzil.la/1904343\" class=\"external\" target=\"_blank\">Firefox bug 1904343</a>).</li>\n<li>Fixed an issue where the <code>network.authRequired</code> event was sent out multiple times with each call to the <code>network.continueWithAuth</code> command (<a href=\"https://bugzil.la/1899711\" class=\"external\" target=\"_blank\">Firefox bug 1899711</a>).</li>\n</ul>\n<h4 id=\"marionette\">Marionette</h4>\n<ul>\n<li>Fixed an issue in <code>WebDriver:ElementSendKeys</code> so that it only scrolls the element into view if it is not already visible (<a href=\"https://bugzil.la/1906095\" class=\"external\" target=\"_blank\">Firefox bug 1906095</a>).</li>\n</ul>"}},{"type":"prose","value":{"id":"changes_for_add-on_developers","title":"Changes for add-on developers","isH3":false,"content":"<ul>\n<li>The <code>options</code> parameter of <a href=\"/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/getSecurityInfo\"><code>webRequest.getSecurityInfo</code></a> is now optional (<a href=\"https://bugzil.la/1909474\" class=\"external\" target=\"_blank\">Firefox bug 1909474</a>).</li>\n<li><a href=\"/en-US/docs/Mozilla/Add-ons/WebExtensions/API/runtime/getURL\"><code>runtime.getURL</code></a> (and the deprecated <a href=\"/en-US/docs/Mozilla/Add-ons/WebExtensions/API/extension/getURL\"><code>extension.getURL</code></a>) now always prepended the extension origin to the path, without further normalization. Previously, when an absolute URL was provided, instead of a relatively URL, the absolute URL was returned. (<a href=\"https://bugzil.la/1795082\" class=\"external\" target=\"_blank\">Firefox bug 1795082</a>).</li>\n</ul>"}},{"type":"prose","value":{"id":"experimental_web_features","title":"Experimental web features","isH3":false,"content":"<p>These features are newly shipped in Firefox 130 but are disabled by default. To experiment with them, search for the appropriate preference on the <code>about:config</code> page and set it to <code>true</code>. You can find more such features on the <a href=\"/en-US/docs/Mozilla/Firefox/Experimental_features\">Experimental features</a> page.</p>\n<ul>\n<li>\n<p><strong>Request video frame callback:</strong> <code>media.rvfc.enabled</code>.</p>\n<p>The <a href=\"/en-US/docs/Web/API/HTMLVideoElement/requestVideoFrameCallback\" title=\"requestVideoFrameCallback()\"><code>requestVideoFrameCallback()</code></a> method of the <a href=\"/en-US/docs/Web/API/HTMLVideoElement\"><code>HTMLVideoElement</code></a> interface registers a callback function that runs when a new video frame is sent to the compositor. This enables developers to perform efficient operations on each video frame, such as video analysis, painting to a canvas, synchronization with external audio sources, and so on. The method returns a callback handle that can be passed to <a href=\"/en-US/docs/Web/API/HTMLVideoElement/cancelVideoFrameCallback\"><code>HTMLVideoElement.cancelVideoFrameCallback()</code></a> in order to cancel the outstanding callback request.\nBoth methods are enabled by default on the nightly build. (<a href=\"https://bugzil.la/1800882\" class=\"external\" target=\"_blank\">Firefox bug 1800882</a>).</p>\n</li>\n<li>\n<p><strong>CSP violation reports using the Reporting API:</strong> <code>dom.reporting.enabled</code>.</p>\n<p>The <a href=\"/en-US/docs/Web/API/Reporting_API\">Reporting API</a> can be used for reporting <a href=\"/en-US/docs/Web/HTTP/CSP\">Content Security Policy (CSP)</a> violations.\nThis includes support for <a href=\"/en-US/docs/Web/API/Report\"><code>Report</code></a> objects that have a <code>type</code> property with the value <code>\"csp-violation\"</code> and <code>body</code> property that is an instance of the <a href=\"/en-US/docs/Web/API/CSPViolationReportBody\"><code>CSPViolationReportBody</code></a> interface, the <a href=\"/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/report-to\"><code>report-to</code></a> directive of the <a href=\"/en-US/docs/Web/HTTP/Headers/Content-Security-Policy\"><code>Content-Security-Policy</code></a> HTTP response header, and the <a href=\"/en-US/docs/Web/HTTP/Headers/Reporting-Endpoints\"><code>Reporting-Endpoints</code></a> and <a href=\"/en-US/docs/Web/HTTP/Headers/Report-To\"><code>Report-To</code></a> HTTP response headers.\nThis feature is disabled by default.\n(<a href=\"https://bugzil.la/1391243\" class=\"external\" target=\"_blank\">Firefox bug 1391243</a>).</p>\n</li>\n</ul>"}},{"type":"prose","value":{"id":"older_versions","title":"Older versions","isH3":false,"content":"<div class=\"multiColumnList\"><ul><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/129\">Firefox 129 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/128\">Firefox 128 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/127\">Firefox 127 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/126\">Firefox 126 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/125\">Firefox 125 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/124\">Firefox 124 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/123\">Firefox 123 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/122\">Firefox 122 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/121\">Firefox 121 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/120\">Firefox 120 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/119\">Firefox 119 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/118\">Firefox 118 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/117\">Firefox 117 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/116\">Firefox 116 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/115\">Firefox 115 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/114\">Firefox 114 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/113\">Firefox 113 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/112\">Firefox 112 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/111\">Firefox 111 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/110\">Firefox 110 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/109\">Firefox 109 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/108\">Firefox 108 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/107\">Firefox 107 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/106\">Firefox 106 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/105\">Firefox 105 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/104\">Firefox 104 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/103\">Firefox 103 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/102\">Firefox 102 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/101\">Firefox 101 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/100\">Firefox 100 for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases/99\">Firefox 99 for developers</a></li></ul></div>"}}],"isActive":true,"isMarkdown":true,"isTranslated":false,"locale":"en-US","mdn_url":"/en-US/docs/Mozilla/Firefox/Releases/130","modified":"2025-02-11T16:53:09.000Z","native":"English (US)","noIndexing":false,"other_translations":[{"locale":"de","title":"Firefox 130 für Entwickler","native":"Deutsch"},{"locale":"ja","title":"Firefox 130 for developers","native":"日本語"}],"pageTitle":"Firefox 130 for developers - Mozilla | MDN","parents":[{"uri":"/en-US/docs/Mozilla","title":"Mozilla"},{"uri":"/en-US/docs/Mozilla/Firefox","title":"Firefox"},{"uri":"/en-US/docs/Mozilla/Firefox/Releases","title":"Firefox release notes for developers"},{"uri":"/en-US/docs/Mozilla/Firefox/Releases/130","title":"Firefox 130 for developers"}],"popularity":null,"short_title":"Firefox 130 for developers","sidebarHTML":"<ol><li class=\"toggle\"><details><summary>Firefox releases</summary><ol><li><a href=\"/en-US/docs/Mozilla/Firefox/Releases\">Firefox release notes for developers</a></li><li><a href=\"/en-US/docs/Mozilla/Firefox/Experimental_features\">Experimental features in Firefox</a></li></ol></details></li><li class=\"toggle\"><details><summary>Add-ons</summary><ol><li><a href=\"/en-US/docs/Mozilla/Add-ons/WebExtensions\">Browser extensions</a></li><li><a href=\"https://extensionworkshop.com/documentation/themes\" class=\"external\" target=\"_blank\">Themes</a></li></ol></details></li><li><a href=\"https://firefox-source-docs.mozilla.org/\" class=\"external\" target=\"_blank\">Firefox documentation</a></li></ol>","source":{"folder":"en-us/mozilla/firefox/releases/130","github_url":"https://github.com/mdn/content/blob/main/files/en-us/mozilla/firefox/releases/130/index.md","last_commit_url":"https://github.com/mdn/content/commit/a7444882eb1b18918f3c924d83eb3c78f245643a","filename":"index.md"},"summary":"This article provides information about the changes in Firefox 130 that affect developers. Firefox 130 was released on September 3, 2024.","title":"Firefox 130 for developers","toc":[{"text":"Changes for web developers","id":"changes_for_web_developers"},{"text":"Changes for add-on developers","id":"changes_for_add-on_developers"},{"text":"Experimental web features","id":"experimental_web_features"},{"text":"Older versions","id":"older_versions"}],"pageType":"firefox-release-notes"}}</script></body></html>