path: root/files/zh-tw/archive/b2g_os/releases/1.2/index.html

---
title: Firefox OS 1.2 for developers
slug: Archive/B2G_OS/Releases/1.2
translation_of: Archive/B2G_OS/Releases/1.2
---
<div class="summary">
<p><span class="seoSummary">Firefox OS 1.2 is at a pre-release stage right now. Its Gecko component is based on Firefox 26 (encompassing all Gecko additions between Firefox 19 and Firefox 26; see <a href="/en-US/docs/Mozilla/Firefox/Releases/26">Firefox 26 release notes for developers</a> for the latest.) This page details the developer features newly implemented in Firefox OS 1.2.</span></p>
</div>

<h2 id="Developer_Tools">Developer Tools</h2>

<ul>
 <li>Firefox OS versions 1.2 and above are compatible with the <a href="/en-US/docs/Mozilla/Firefox_OS/Using_the_App_Manager">Firefox App Manager</a>.</li>
</ul>

<h2 id="HTML">HTML</h2>

<p>General Gecko:</p>

<ul>
 <li>The <code><a href="/zh-TW/docs/Web/HTML/Element/iframe#attr-srcdoc">srcdoc</a></code> attribute of <a href="/zh-TW/docs/Web/HTML/Element/iframe" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;iframe&gt;</code></a>, allowing the inline specification of the content of an <a href="/zh-TW/docs/Web/HTML/Element/iframe" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;iframe&gt;</code></a>, is now supported (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=802895" title="FIXED: implement &lt;iframe srcdoc=''> to allow document content in iframe to be specified inline">bug 802895</a>).</li>
 <li>When used with a <code>"image/jpeg"</code> type, the method <code>HTMLCanvasElement.toBlob</code> now accepts a third attribute defining the quality of the image (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=891884" title="FIXED: toBlob should support the quality parameter as toDataURL does">bug 891884</a>).</li>
 <li>The <a href="https://developer.mozilla.org/en-US/docs/Web/HTML/Element/track" title="The track element is used as a child of the media elements—&lt;audio> and &lt;video>—and does not represent anything on its own. It lets you specify timed text tracks (or time-based data)."><code>&lt;track&gt;</code></a> element has been implemented behind the <code>media.webvtt.enabled</code> property (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=833385" title="FIXED: [webvtt] Implement Track element and TextTrack* DOM classes">bug 833385</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/HTML/Element/blink" title="非標準元素 HTML Blink（&lt;blink>）可以讓該元素裡面的文字緩慢閃爍。"><code>&lt;blink&gt;</code></a> element support is now completely dropped. The <code>&lt;blink&gt;</code> tag now implements the <a href="/zh-TW/docs/Web/API/HTMLUnknownElement" title="The documentation about this has not yet been written; please consider contributing!"><code>HTMLUnknownElement</code></a> interface (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=857820" title="FIXED: Drop only blink effect from text-decoration: blink; and completely remove &lt;blink> element">bug 857820</a>).</li>
 <li>The <code>range</code> state of the <a href="/zh-TW/docs/Web/HTML/Element/input" title="The HTML &lt;input> element is used to create interactive controls for web-based forms in order to accept data from the user."><code>&lt;input&gt;</code></a> element (<code>&lt;input type="range"&gt;</code>) has been switched on by default (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=841950" title="FIXED: Flip the pref to enable &lt;input type=range> for release builds">bug 841950</a>).</li>
 <li>The HTML5 <a href="/zh-TW/docs/Web/HTML/Element/data" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;data&gt;</code></a> element has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=839371" title="FIXED: Implement HTML5 &lt;data> element">bug 839371</a>).</li>
 <li>The HTML5 <a href="/zh-TW/docs/Web/HTML/Element/time" title="HTML &lt;time> element 用以表示時間，可以是24小時制時間或以公曆紀年的日期（日期可以添加時間和時區的資訊）"><code>&lt;time&gt;</code></a> element has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=629801" title="FIXED: Implement HTML5 &lt;time> element">bug 629801</a>).</li>
 <li>The <code>range</code> state of the <a href="/zh-TW/docs/Web/HTML/Element/input" title="The HTML &lt;input> element is used to create interactive controls for web-based forms in order to accept data from the user."><code>&lt;input&gt;</code></a> element (<code>&lt;input type="range"&gt;</code>) has been implemented, behind the preference <code>dom.experimental_forms_range</code>, only enabled by default on Nightly and Aurora channel (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=841948" title="FIXED: Flip the pref to enable &lt;input type=range> on Nightly and Aurora">bug 841948</a>).</li>
 <li>The support for the <a href="/zh-TW/docs/Web/HTML/Element/template" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;template&gt;</code></a> element, part of the Web component specification has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=818976" title="FIXED: Implement web components template.">bug 818976</a>).</li>
 <li>The <code><a href="/zh-TW/docs/Web/HTML/Element/style#attr-scoped">scoped</a></code> attribute has been added to the <a href="/zh-TW/docs/Web/HTML/Element/style" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;style&gt;</code></a> element. It allows to include styles that are isolated from the rest of the document. Such styles can be selected using the <a href="/zh-TW/docs/Web/CSS/:scope" title="The documentation about this has not yet been written; please consider contributing!"><code>:scope</code></a> CSS pseudo-element introduced in Firefox 20. (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=508725" title="FIXED: Implement HTML 5 scoped attribute on STYLE tag">bug 508725</a>).</li>
 <li>The new HTML <a href="/zh-TW/docs/Web/HTML/Element/main" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;main&gt;</code></a> element has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=820508" title="FIXED: Add support for &lt;main> element">bug 820508</a>).</li>
 <li>Support for the <code><a href="/zh-TW/docs/Web/HTML/Element/a#attr-download">download</a></code> attribute on the <a href="/zh-TW/docs/Web/HTML/Element/a" title="HTML 的超連結元素（&lt;a>，意為 Anchor）用來定義超連結或連結，至位在任何一個網頁(可以是自己)的目標位置。超連結元素同時也可以用來(儘管此方法已被淘汰)作為網頁中的錨點，此錨點可以讓其他超連結指向網頁中的某部份內容，讓超連結不只是單純連接到網頁的最頂端而已。"><code>&lt;a&gt;</code></a> and <a href="/zh-TW/docs/Web/HTML/Element/area" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;area&gt;</code></a> element has been added (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=676619" title="FIXED: Implement proposed download attribute">bug 676619</a>).</li>
 <li>The value <code>auto </code>for the <a href="/en-US/docs/HTML/Global_attributes" title="HTML/Global_attributes">global attribute</a> <a href="/en-US/docs/HTML/Global_attributes#attr-dir" title="HTML/Global_attributes"><code>dir</code></a> has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=548206" title="FIXED: Implement the auto value for the HTML dir attribute">bug 548206</a>).</li>
</ul>

<h2 id="CSS">CSS</h2>

<p>General Gecko:</p>

<ul>
 <li>@font-feature-values rule support (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=549861" title="FIXED: implement parsing of font feature properties">bug 549861</a>)</li>
 <li>StyleRule{Added,Removed,Changed}, StyleSheetApplicableStateChange, StyleSheetChange events (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=839103" title="FIXED: Provide notifications for style sheet added and removed to chrome JS">bug 839103</a>)</li>
 <li>The <a href="/zh-TW/docs/Web/CSS/text-decoration-line" title="The documentation about this has not yet been written; please consider contributing!"><code>text-decoration-line</code></a> property, still prefixed, now considers <code>'blink'</code> as a valid value, though it doesn't blink the content at all (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=812995" title="FIXED: add 'blink' to -moz-text-decoration-line and drop -moz-text-blink">bug 812995</a>).</li>
 <li>The non-standard<code> </code><a href="/zh-TW/docs/Web/CSS/-moz-text-blink" title="The documentation about this has not yet been written; please consider contributing!"><code>-moz-text-blink</code></a> property has been removed (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=812995" title="FIXED: add 'blink' to -moz-text-decoration-line and drop -moz-text-blink">bug 812995</a>).</li>
 <li>Support for the <a href="/zh-TW/docs/Web/CSS/image-orientation" title="The documentation about this has not yet been written; please consider contributing!"><code>image-orientation</code></a> property, in its CSS Images &amp; Values Level 4 version, that is with the <code>from-image</code> keyword and EXIF support, has been added (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=825771" title="FIXED: [css3-images] implement 'image-orientation' property">bug 825771</a>).</li>
 <li>Support for <code>position: sticky</code> can be enabled by pref <code>layout.css.sticky.enabled</code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=886646" title="FIXED: implement position:sticky">bug 886646</a>).</li>
 <li>The support for the keyword <code>local</code> as a value of the <a href="/zh-TW/docs/Web/CSS/background-attachment" title="The documentation about this has not yet been written; please consider contributing!"><code>background-attachment</code></a> CSS property has been added (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=483446" title="FIXED: CSS3 background-attachment: local support">bug 483446</a>).</li>
 <li>Support of a non-standard Mozilla-only media query to determine the operating system version has been added: <code><a href="/en-US/docs/Web/Guide/CSS/Media_queries#-moz-os-version" title="/en-US/docs/Web/Guide/CSS/Media_queries#-moz-os-version">-moz-os-version</a></code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=810399" title="FIXED: Add a CSS Media Query for Windows 8 Desktop theme">bug 810399</a>). The property is currently only implemented on Windows.</li>
 <li>The <a href="/zh-TW/docs/Web/CSS/-moz-osx-font-smoothing" title="The documentation about this has not yet been written; please consider contributing!"><code>-moz-osx-font-smoothing</code></a> CSS property has been added (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=857142" title="FIXED: Add CSS property for author control over antialiasing on Mac OS X, for cases where fonts appear too heavy">bug 857142</a>)</li>
 <li>The two values <code>-moz-zoom-in</code> and <code>-moz-zoom-out</code> of the <a href="https://developer.mozilla.org/en-US/docs/Web/CSS/cursor" title=""><code>cursor</code></a> property have been unprefixed to <code>zoom-in</code> and <code>zoom-out</code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=772153" title="FIXED: unprefix CSS cursor: -moz-zoom-in | -moz-zoom-out">bug 772153</a>)).</li>
 <li>The blink effect for <code><a href="/en-US/docs/CSS/text-decoration" title="/en-US/docs/CSS/text-decoration">text-decoration</a>: blink;</code> has no more effect, but is still a valid value (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=857820" title="FIXED: Drop only blink effect from text-decoration: blink; and completely remove &lt;blink> element">bug 857820</a>).</li>
 <li>In-flow <a href="/zh-TW/docs/Web/CSS/::after" title="The documentation about this has not yet been written; please consider contributing!"><code>::after</code></a> and <a href="/zh-TW/docs/Web/CSS/::before" title="The documentation about this has not yet been written; please consider contributing!"><code>::before</code></a> pseudo-elements are now flex items (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=867454" title="FIXED: Support ::before, ::after as flex items">bug 867454</a>).</li>
 <li>Following a spec change, the initial value for <a href="/zh-TW/docs/Web/CSS/min-width" title="The documentation about this has not yet been written; please consider contributing!"><code>min-width</code></a> and <a href="/zh-TW/docs/Web/CSS/min-height" title="The documentation about this has not yet been written; please consider contributing!"><code>min-height</code></a> has been changed back to <code>0</code>, even on flex items (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=848539" title="FIXED: Remove support for &quot;min-width: auto&quot; and &quot;min-height: auto&quot;, since they're being dropped from flexbox spec">bug 848539</a>).</li>
 <li>Support for CSS Conditionals (<a href="/zh-TW/docs/Web/CSS/@supports" title="The documentation about this has not yet been written; please consider contributing!"><code>@supports</code></a> and <a href="/zh-TW/docs/Web/API/CSS/supports" title="The documentation about this has not yet been written; please consider contributing!"><code>CSS.supports</code></a>) has been enabled by default (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=855455" title="FIXED: enable @supports rule in all builds">bug 855455</a>).</li>
 <li>Support for <a href="/zh-TW/docs/Web/CSS/background-clip" title="The documentation about this has not yet been written; please consider contributing!"><code>background-clip</code></a> and <a href="/zh-TW/docs/Web/CSS/background-origin" title="The documentation about this has not yet been written; please consider contributing!"><code>background-origin</code></a> properties in the <a href="/zh-TW/docs/Web/CSS/background" title="The documentation about this has not yet been written; please consider contributing!"><code>background</code></a> shorthand has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=570896" title="FIXED: add support for different background-origin and background-clip in background shorthand (css3-background)">bug 570896</a>).</li>
 <li>The <code>none</code> value of <a href="/zh-TW/docs/Web/CSS/user-select" title="The documentation about this has not yet been written; please consider contributing!"><code>-moz-user-select</code></a> has now the same behavior than the <code>-moz-none</code> value, aligning Gecko on WebKit (Chrome, Safari), Presto (Opera) and Trident (Internet Explorer) (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=816298" title='FIXED: Change "-moz-user-select:none" to behave like WebKit, IE, and Opera (and "-moz-user-select:-moz-none")'>bug 816298</a>).</li>
 <li>On XHTML content, the <code>auto</code> value of <a href="/zh-TW/docs/Web/CSS/hyphens" title="The documentation about this has not yet been written; please consider contributing!"><code>-moz-hyphens</code></a> incorrectly applied hyphenation rules when the language was not explicitly declared. This is fixed by (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=702121" title="FIXED: Incorrect hyphenation patterns used by CSS moz-hyphens in XHTML content (en-US patterns used, regardless of lang declaration)">bug 702121</a>).</li>
 <li>An <code>auto</code> value has been added to the CSS <a href="/zh-TW/docs/Web/CSS/-moz-orient" title="The documentation about this has not yet been written; please consider contributing!"><code>-moz-orient</code></a> property. The <code>auto</code> value is equivalent to <code>horizontal</code> when applied to <a href="/zh-TW/docs/Web/HTML/Element/meter" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;meter&gt;</code></a> and <a href="/zh-TW/docs/Web/HTML/Element/progress" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;progress&gt;</code></a> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=835883" title="FIXED: Give the -moz-orient property an 'auto' value, and make that its initial value">bug 835883</a>).</li>
 <li>The media query <a href="/en-US/docs/Web/Guide/CSS/Media_queries#-moz-windows-glass" title="/en-US/docs/Web/Guide/CSS/Media_queries#-moz-windows-glass"><code>-moz-windows-glass</code></a> has been added on Windows 7 and earlier Windows system (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=816803" title="FIXED: Need a way to detect existence of Aero Glass via CSS">bug 816803</a>).</li>
 <li><a href="/en-US/docs/CSS/Using_CSS_flexible_boxes" title="CSS/Using_CSS_flexible_boxes">CSS Flexbox</a> has been unprefixed, and is now enabled by default (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=841876" title="FIXED: Re-enable flexbox pref (by default) in release builds">bug 841876</a>).</li>
 <li>The <code>mask-type</code> property from the <a href="https://dvcs.w3.org/hg/FXTF/raw-file/tip/masking/index.html" title="https://dvcs.w3.org/hg/FXTF/raw-file/tip/masking/index.html">CSS Masking specification</a> has been added (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=793617" title="FIXED: implement mask-type property from CSS Masking">bug 793617</a>).</li>
 <li>Experimental support for the <a href="/zh-TW/docs/Web/CSS/:scope" title="The documentation about this has not yet been written; please consider contributing!"><code>:scope</code></a> pseudo-class has been added. Enabled by default in Aurora and Nightly, it can be enabled in release and beta version by setting the <code>layout.css.scope-pseudo.enabled</code> about:config preference to <code>true</code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=648722" title="FIXED: Add support for :scope as :-moz-scope">bug 648722</a>).</li>
 <li>Support for the viewport-relative <a href="/zh-TW/docs/Web/CSS/length" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;length&gt;</code></a> units, <code>vh</code>, <code>vw</code>, <code>vmin</code>, and <code>vmax</code>, has landed (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=503720" title="FIXED: Implement vw/vh/vmin/vmax (viewport sizes) from CSS 3 Values and Units">bug 503720</a>).</li>
 <li>The <code>-moz-initial</code> value has been unprefixed (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=806068" title="FIXED: Unprefix -moz-initial">bug 806068</a>). <code>-moz-initial</code> will be kept for a while as an alias; however, authors are strongly encouraged to switch over to <code>initial</code>.</li>
 <li>The CSS <a href="/zh-TW/docs/Web/CSS/text-transform" title="The documentation about this has not yet been written; please consider contributing!"><code>text-transform</code></a> property now supports the <code>full-width</code> keyword, which allows a more seamless inclusion of Latin characters in text using ideographic fixed-width characters, like Chinese or Japanese (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=774560" title="FIXED: Implement text-transform: full-width">bug 774560</a>).</li>
 <li>The CSS <a href="/zh-TW/docs/Web/CSS/page-break-inside" title="The documentation about this has not yet been written; please consider contributing!"><code>page-break-inside</code></a> has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=685012" title="FIXED: Implement page-break-inside: avoid">bug 685012</a>).</li>
 <li>The CSS <a href="/zh-TW/docs/Web/CSS/calc" title="The documentation about this has not yet been written; please consider contributing!"><code>calc()</code></a> function can now be used on <code>&lt;color-stop&gt;</code> (on <a href="/zh-TW/docs/Web/CSS/gradient" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;gradient&gt;</code></a>).</li>
 <li>The CSS <a href="/zh-TW/docs/Web/CSS/@page" title="The documentation about this has not yet been written; please consider contributing!"><code>@page</code></a> at-rule is now supported (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=115199" title="FIXED: @page in CSS2 not implemented">bug 115199</a>). Note that the pseudo-classes <a href="/zh-TW/docs/Web/CSS/:first" title="The documentation about this has not yet been written; please consider contributing!"><code>:first</code></a>, <a href="/zh-TW/docs/Web/CSS/:right" title="The documentation about this has not yet been written; please consider contributing!"><code>:right</code></a>, and <a href="/zh-TW/docs/Web/CSS/:left" title="The documentation about this has not yet been written; please consider contributing!"><code>:left</code></a> are not yet implemented.</li>
 <li>The <a href="/zh-TW/docs/Web/CSS/:-moz-placeholder" title="The documentation about this has not yet been written; please consider contributing!"><code>:-moz-placeholder</code></a> pseudo-class is replaced by the <a href="/zh-TW/docs/Web/CSS/::-moz-placeholder" title="The documentation about this has not yet been written; please consider contributing!"><code>::-moz-placeholder</code></a> pseudo-<em>element</em> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=737786" title="FIXED: Switch from :-moz-placeholder to ::-moz-placeholder (pseudo-class to pseudo-element)">bug 737786</a>).</li>
</ul>

<h2 id="JavaScript">JavaScript</h2>

<p>General Gecko:</p>

<p><a href="/en-US/docs/Web/JavaScript/ECMAScript_6_support_in_Mozilla" title="/en-US/docs/Web/JavaScript/ECMAScript_6_support_in_Mozilla">EcmaScript 6</a> (Harmony) implementation continues!</p>

<ul>
 <li>New mathematical methods have been implemented on <a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math" title="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math"><code>Math</code></a>: <a href="/en-US/docs/JavaScript/Reference/Global_Objects/Math/fround" title="/en-US/docs/JavaScript/Reference/Global_Objects/Math/fround"><code>Math.fround()</code></a> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=900125" title="FIXED: Float32: add Math.fround to the interpreter">bug 900125</a>).</li>
 <li>The method <code>Array.of()</code> is now implemented on <code><a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array" title="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array">Array</a></code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=866849" title="FIXED: Implement ES6 Array.of">bug 866849</a>).</li>
 <li>The methods <a href="/zh-TW/docs/Web/JavaScript/Reference/Global_Objects/Number/parseInt" title="The documentation about this has not yet been written; please consider contributing!"><code>Number.parseInt()</code></a> and <a href="/zh-TW/docs/Web/JavaScript/Reference/Global_Objects/Number/parseFloat" title="The documentation about this has not yet been written; please consider contributing!"><code>Number.parseFloat()</code></a> have been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=886949" title="FIXED: Add Number.parseInt and Number.parseFloat">bug 886949</a>)</li>
 <li>The methods <code>Map.prototype.forEach()</code> and <code>Set.prototype.forEach()</code> are now implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=866847" title="FIXED: Implement Map#forEach and Set#forEach">bug 866847</a>)</li>
 <li>New mathematical methods have been implemented on <a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math" title="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math"><code>Math</code></a>: <code>Math.log10()</code>, <code>Math.log2()</code>, <code>Math.log1p()</code>, <code>Math.expm1()</code>, <code>Math.cosh()</code>, <code>Math.sinh()</code>, <code>Math.tanh()</code>, <code>Math.acosh()</code>, <code>Math.asinh()</code>, <code>Math.atanh()</code>, <code>Math.trunc()</code>, <code>Math.sign()</code> and <code>Math.cbrt()</code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=717379" title="FIXED: Implement the new ES6 math functions">bug 717379</a>).</li>
 <li>Support for binary and octal integer literals has been added: <code>0b10101010</code>, <code>0B1010</code>, <code>0o777</code>, <code>0O237</code> are now valid (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=894026" title="FIXED: Implement BinaryIntegerLiteral and OctalIntegerLiteral">bug 894026</a>).</li>
 <li>The machine epsilon constant, that is <font>the smallest representible number that added to 1 will not be 1,</font> is now available as <a href="/zh-TW/docs/Web/JavaScript/Reference/Global_Objects/Number/EPSILON" title="The documentation about this has not yet been written; please consider contributing!"><code>Number.EPSILON</code></a> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=885798" title="FIXED: Add new ES6 Number constants: EPSILON, MAX_SAFE_INTEGER, MIN_SAFE_INTEGER">bug 885798</a>).</li>
 <li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/arrow_functions" title="/en-US/docs/Web/JavaScript/Reference/arrow_functions">Arrow functions</a> are no longer automatically in strict mode unless explicitly requested with <code>"use strict"</code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=852762" title="FIXED: Arrow functions are not automatically strict after all">bug 852762</a>)).</li>
 <li>The <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/repeat" title="/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/repeat"><code>String.prototype.repeat</code></a> JS method has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=815431" title="FIXED: implement String.prototype.repeat">bug 815431</a>).</li>
 <li>The <a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperty" title="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperty"><code>Object.defineProperty</code></a> method can now be used to redefine the <code>length</code> property of an <a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array" title="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array"><code>Array</code></a> object.</li>
 <li>The option to disable JavaScript, including the options to allow moving windows/replace context menu, have been removed. You may still disable JavaScript by double clicking the "javascript.enabled" option in about:config.</li>
 <li><a href="http://asmjs.org/spec/latest/" title="http://asmjs.org/spec/latest/">Asm.js </a>optimizations are enabled, making it possible to compile C/C++ applications to a subset of Javascript for better performance.</li>
 <li>ES6 <a href="/en-US/docs/JavaScript/Reference/arrow_functions" title="/en-US/docs/JavaScript/Reference/arrow_functions">Arrow Function</a> syntax has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=846406" title="FIXED: Implement arrow functions">bug 846406</a>).</li>
 <li>The new <a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is" title="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is">Object.is</a> function has been added (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=839979" title="FIXED: Implement Object.is">bug 839979</a>).</li>
 <li><a href="/en-US/docs/E4X" title="E4X">E4X</a>, an ancient JavaScript extension, has been removed. Implemented only in Gecko, it never got significant traction (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=788293" title="FIXED: Remove E4X from SpiderMonkey">bug 788293</a>).</li>
 <li><a href="https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/parseInt" title="">parseInt</a> no longer treats strings with leading "0" as octal (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=786135" title='FIXED: Make parseInt("042") === 42, now that other engines are moving that way'>bug 786135</a>).</li>
 <li>Support for the <code><a href="/en-US/docs/JavaScript/Reference/Global_Objects/WeakMap" title="JavaScript/Reference/Global_Objects/WeakMap">Weakmap</a>.prototype.clear()</code> method, recently added to the Harmony (EcmaScript 6) draft proposal has been added (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=814562" title="FIXED: Implement clear() on WeakMaps">bug 814562</a>).</li>
 <li>Support for the <a href="/en-US/docs/JavaScript/Reference/Global_Objects/Math/imul" title="JavaScript/Reference/Global_Objects/Math/imul"><code>Math.imul()</code></a> method, a C-style 32-bit multiplication function. Though proposed for Harmony (EcmaScript 6) it has not yet accepted and still is non-standard (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=808148" title="FIXED: prototype Math.imul">bug 808148</a>).</li>
 <li>Web apps using draggable text with Kinetic 3.x are working, even when using the Cairo canvas backend (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=835064" title="Firefox 18 won't drag text on some installations.">bug 835064</a>).</li>
 <li>The <a href="/en-US/docs/JavaScript/Reference/Statements/for_each...in" title="JavaScript/Reference/Statements/for_each...in"><code>for each…in</code></a> statement has been deprecated and should not be used. Consider using the new <a href="/en-US/docs/JavaScript/Reference/Statements/for...of" title="JavaScript/Reference/Statements/for...of"><code>for…of</code></a> statement (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=804834" title='FIXED: Hide "for each" from content'>bug 804834</a>).</li>
 <li>Support for the <code><a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map" title="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map">Map</a>.prototype.keys</code>, <code><code><a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map" title="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map">Map</a></code>.prototype.values</code>, and <code><code><a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map" title="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map">Map</a></code>.prototype.entries</code> has been added (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=817368" title="FIXED: Map.prototype.{keys,values,entries}">bug 817368</a>).</li>
 <li><code><a href="/en-US/docs/JavaScript/Reference/Global_Objects/Map" title="JavaScript/Reference/Global_Objects/Map">Map</a></code> and <code><a href="/en-US/docs/JavaScript/Reference/Global_Objects/Set" title="JavaScript/Reference/Global_Objects/Set">Set</a></code> objects have changed from having a <code>size()</code> method to a <code>size</code> property (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=807001" title="FIXED: Map.prototype.size and Set.prototype.size should be accessor properties">bug 807001</a>).</li>
 <li><code><a href="/en-US/docs/JavaScript/Reference/Global_Objects/Map" title="JavaScript/Reference/Global_Objects/Map">Map</a></code> and <code><a href="/en-US/docs/JavaScript/Reference/Global_Objects/Set" title="JavaScript/Reference/Global_Objects/Set">Set</a></code> objects also have a clear() method now. (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=805003" title="FIXED: Implement Map.prototype.clear and Set.prototype.clear methods">bug 805003</a>).</li>
</ul>

<h2 id="Telephony-specific_additions_(mostly_API-related)">Telephony-specific additions (mostly API-related)</h2>

<ul>
 <li>Fuzzy matcher API for phone numbers (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=883923" title="FIXED: Provide a Fuzzy Matcher API for phone numbers">bug 883923</a>)</li>
 <li>CDMA
  <ul>
   <li>Registration info (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=882984" title="FIXED: [B2G] [CDMA] Update nsIDOMMozMobileCellInfo to also report base station id, base station latitude, base station longitude, system id, network id">bug 882984</a>)
    <ul>
     <li>(<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=882984" title="FIXED: [B2G] [CDMA] Update nsIDOMMozMobileCellInfo to also report base station id, base station latitude, base station longitude, system id, network id">bug 882984</a>)</li>
     <li>multiple new CDMA specific attributes in <code>MozMobileCellInfo</code></li>
     <li>dom/network/interfaces/nsIDOMMobileConnection.idl</li>
    </ul>
   </li>
   <li>Emergency callback mode support (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=887690" title="FIXED: B2G RIL: Support emergency callback mode">bug 887690</a>)
    <ul>
     <li>new method <code>exitEmergencyCbMode</code> and new event <code>emergencycbmodechange</code> in <code>MozMobileConnection</code></li>
     <li>dom/network/interfaces/nsIDOMMozEmergencyCbModeEvent.idl</li>
    </ul>
   </li>
   <li>OTASP (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=882983" title="FIXED: B2G RIL: Support for CDMA OTASP - expose ota status">bug 882983</a>)
    <ul>
     <li>new event <code>otastatuschange</code> in <code>MozMobileConnection</code></li>
     <li>dom/network/interfaces/nsIDOMMozOtaStatusEvent.idl</li>
    </ul>
   </li>
   <li>MDN/MIN (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=869778" title="FIXED: [B2G][CDMA]Get the CDMA subscription information.">bug 869778</a>)
    <ul>
     <li>new interface <code>MozGsmIccInfo</code> &amp; <code>MozCdmaIccInfo</code></li>
     <li>new attribute <code>iccType</code> in <code>MozIccInfo</code></li>
     <li>dom/icc/interfaces/nsIDOMIccInfo.idl</li>
    </ul>
   </li>
   <li>Preferred voice mode (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=869769" title="FIXED: [B2G][CDMA] Set and Query the preferred voice mode in CDMA">bug 869769</a>)
    <ul>
     <li>new methods <code>setVoicePrivacyMode</code> and <code>getVoicePrivacyMode</code> in <code>MozMobileConnection</code></li>
     <li>dom/network/interfaces/nsIDOMMobileConnection.idl</li>
    </ul>
   </li>
   <li>Roaming preference (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=869768" title="FIXED: [B2G][CDMA] Set and Query the roaming preference in CDMA">bug 869768</a>)
    <ul>
     <li>new methods <code>setRoamingPreference</code> and <code>getRoamingPreference</code> in <code>MozMobileConnection</code></li>
     <li>dom/network/interfaces/nsIDOMMobileConnection.idl</li>
    </ul>
   </li>
   <li>Call Waiting (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=822210" title="FIXED: B2G CDMA: support call waiting">bug 822210</a>)
    <ul>
     <li>new attribute <code>secondNumber</code> in <code>TelephonyCall</code></li>
     <li>dom/webidl/TelephonyCall.webidl</li>
    </ul>
   </li>
  </ul>
 </li>
 <li>Support Change Call Barring Password (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=905479" title="FIXED: B2G RIL: Support Change Call Barring Password">bug 905479</a>)
  <ul>
   <li>new method <code>changeCallBarringPassword</code> in <code>MozMobileConnection</code></li>
   <li>dom/network/interfaces/nsIDOMMobileConnection.idl</li>
  </ul>
 </li>
 <li>Move ICC functions out from <code>MobileConnection</code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=875721" title="FIXED: B2G RIL: Move iccInfo related attribute/event from mozMobileConnection to mozIccManager">bug 875721</a>, <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=874744" title="FIXED: B2G RIL: Move card state related attribute/event from mozMobileConnection to mozIccManager">bug 874744</a>, <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=860585" title="FIXED: B2G RIL: Move cardLock related API from mozMobileConnection to mozIccManager">bug 860585</a>, <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=859220" title="FIXED: B2G RIL: Separate MozIccManager from MozMobileConnection">bug 859220</a>)
  <ul>
   <li><code>MozIccInfo</code>
    <ul>
     <li><code>navigator.mozIccManager.iccInfo</code></li>
     <li>new interface</li>
     <li>dom/icc/interfaces/nsIDOMIccInfo.idl</li>
    </ul>
   </li>
   <li><code>MozIccManager</code>
    <ul>
     <li><code>navigator.mozIccManager</code></li>
     <li>new attributes, methods, and events</li>
     <li>dom/icc/interfaces/nsIDOMIccManager.idl</li>
    </ul>
   </li>
   <li><code>MozMobileConnection</code>
    <ul>
     <li><code>navigator.mozMobileConnection</code></li>
     <li>numerous attributes, methods and events removed</li>
     <li>dom/network/interfaces/nsIDOMMobileConnection.idl</li>
    </ul>
   </li>
   <li><code>nsIDOMMozMobileICCInfo</code>
    <ul>
     <li><code>navigator.mozMobileConnection.iccInfo</code></li>
     <li>interface removed</li>
    </ul>
   </li>
  </ul>
 </li>
 <li>ICC card lock improvements
  <ul>
   <li>Rename <code>ICCCardLockErrorEvent</code> to <code>IccCardLockErrorEvent</code>
    <ul>
     <li>dom/webidl/IccCardLockErrorEvent.webidl</li>
    </ul>
   </li>
   <li>Retry count (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=886239" title="FIXED: B2G RIL: Remove retryCount from MobileConnection">bug 886239</a>, <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=875710" title="FIXED: B2G RIL: Get PIN/PUK remaining retry count">bug 875710</a>)
    <ul>
     <li>attribute <code>retryCount</code> removed from <code>MozMobileConnection</code></li>
     <li>new method <code>getCardLockRetryCount</code> in <code>MozIccManager</code></li>
     <li>dom/network/interfaces/nsIDOMMobileConnection.idl</li>
     <li>dom/icc/interfaces/nsIDOMIccManager.idl</li>
    </ul>
   </li>
  </ul>
 </li>
 <li>Import/export SIM Contacts (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=847741" title="FIXED: B2G RIL: Move mozContact.getSimContacts to IccManager">bug 847741</a>, <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=847820" title="FIXED: B2G RIL: Support exporting contacts to SIM card in IccManager">bug 847820</a>)
  <ul>
   <li>new methods <code>readContacts</code>, <code>updateContact</code> in <code>MozIccManager</code></li>
   <li>dom/icc/interfaces/nsIDOMIccManager.idl</li>
  </ul>
 </li>
 <li>ICC Secure Elements (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=840780" title="FIXED: (webicc) WebICC - Secure Elements">bug 840780</a>)
  <ul>
   <li>new methods <code>iccOpenChannel</code>, <code>iccExchangeAPDU</code>, <code>iccCloseChannel</code> in <code>MozIccManager</code></li>
   <li>dom/icc/interfaces/nsIDOMIccManager.idl</li>
  </ul>
 </li>
 <li>STK improvements
  <ul>
   <li>'duration' for Display Text, Setup Call commands (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=831630" title="FIXED: B2G STK: Add 'duration' property for DISPLAY_TEXT and SET_UP_CALL">bug 831630</a>)
    <ul>
     <li>new attribute <code>duration</code> in both <code>MozStkTextMessage</code> and <code>MozStkSetUpCall</code></li>
     <li>dom/icc/interfaces/SimToolKit.idl</li>
    </ul>
   </li>
   <li>support "Language Selection Event" (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=831627" title='FIXED: B2G STK: Support "Language Selection Event" Envelope command.'>bug 831627</a>)
    <ul>
     <li>new dictionary <code>MozStkLanguageSelectionEvent</code></li>
     <li>dom/icc/interfaces/SimToolKit.idl</li>
    </ul>
   </li>
   <li>support "Idle Screen Available Event" (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=831628" title='FIXED: B2G STK: Support "Idle Screen Available Event" Envelope command'>bug 831628</a>)
    <ul>
     <li>new dictionary <code>MozStkGeneralEvent</code></li>
     <li>dom/icc/interfaces/SimToolKit.idl</li>
    </ul>
   </li>
  </ul>
 </li>
 <li>MobileMessage
  <ul>
   <li>Turn <code>getSegmentInfoForText</code> into an async call (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=903403" title="FIXED: [sms][mms] Make getSegmentInfoForText() Asynchronous to Improve Typing Performance">bug 903403</a>)
    <ul>
     <li>dom/mobilemessage/interfaces/nsIDOMMobileMessageManager.idl</li>
    </ul>
   </li>
   <li>Remove navigator.mozSms (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=891235" title="FIXED: WebSMS: remove navigator.mozSms">bug 891235</a>)</li>
  </ul>
 </li>
 <li>Telephony
  <ul>
   <li>support "Conference Call" (certified only) (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=772765" title="FIXED: B2G telephony: support conference calls">bug 772765</a>)
    <ul>
     <li><code>navigator.mozTelephony.conferenceGroup</code></li>
     <li>new interface</li>
    </ul>
   </li>
  </ul>
 </li>
</ul>

<h2 id="DOMAPI">DOM/API</h2>

<p>Firefox OS-specific:</p>

<ul>
 <li><span id="summary_alias_container"><span id="short_desc_nonedit_display">Device Storage API: When getting a cursor callback from <code>navigator.getDeviceStorage("sdcard").enumerate</code>, <code><span id="summary_alias_container"><span id="short_desc_nonedit_display">this.done</span></span></code> was undefined in Firefox &lt;1.2 (see <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=902565" title='this.done in cursor callback of naviagtor.getDeviceStorage("sdcard").enumerate is undefined'>bug 902565</a>). This is now fixed. The referenced bug discusses possible compatibility checks/workarounds for this issue. </span></span></li>
 <li>The <a href="/zh-TW/docs/Web/API/RTCPeerConnection" title="The documentation about this has not yet been written; please consider contributing!"><code>RTCPeerConnection</code></a> Interface from WebRTC is implemented, but currently disabled by default in B2G, as it is not yet functional on Firefox OS devices (see <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=942343" title="FIXED: Pref off media.peerconnection.enabled on Firefox OS">bug 942343</a>.)</li>
 <li><a href="/zh-TW/docs/Web/API/Notification" title="Notifications API 的 Notification interface 是用來設置及顯示「桌面通知」給使用。"><code>Web notifications</code></a> are supported in Firefox 1.2, therefore the <code>Notification</code> object should be used in preference to the old deprecated <a href="/zh-TW/docs/Web/API/Window/navigator/mozNotification" title="The documentation about this has not yet been written; please consider contributing!"><code>mozNotification</code></a> object (see <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=899574" title="FIXED: Notification API follow-up: provide a way to get current Notification objects">bug 899574</a> .)</li>
 <li><a href="/zh-TW/docs/Web/API/Window/navigator/mozInputMethod" title="The documentation about this has not yet been written; please consider contributing!"><code>mozInputMethod</code></a> has been added to allow for people to write 3rd party keyboards. See the test application in gaia/test_apps for a reference implementation.</li>
 <li>The Media Recording API has been implemented (see <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=803414" title="FIXED: Media Recording - Web API &amp; Implementation">bug 803414</a>, <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=889720" title="FIXED: Media Recording - implement Pause/Resume DOM API">bug 889720</a>)</li>
 <li>KeyboardEvent.repeat now supported (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=600117" title="FIXED: Implement DOM3 KeyboardEvent.repeat">bug 600117</a>)</li>
 <li>3rd party keyboards now supported (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=816869" title="FIXED: [Meta] Enable third-party keyboards">bug 816869</a>)</li>
</ul>

<div id="magicdomid15">New WebGL 1 extensions supported in Firefox OS 1.2:</div>

<ul>
 <li><a href="http://www.khronos.org/registry/webgl/extensions/OES_element_index_uint/">OES_element_index_uint</a></li>
 <li><a href="http://www.khronos.org/registry/webgl/extensions/OES_texture_float_linear/">OES_texture_float_linear</a></li>
 <li><a href="http://www.khronos.org/registry/webgl/extensions/OES_vertex_array_object/">OES_vertex_array_object</a></li>
 <li><a href="http://www.khronos.org/registry/webgl/extensions/WEBGL_draw_buffers/">WEBGL_draw_buffers</a></li>
 <li id="magicdomid26"><a href="http://www.khronos.org/registry/webgl/extensions/ANGLE_instanced_arrays/">ANGLE_instanced_arrays</a></li>
</ul>

<div class="note">
<div><strong>Note</strong>: availability of these extensions depends on device capabilities; not all extensions will be available on all devices.</div>
</div>

<p>General Gecko:</p>

<ul>
 <li>A <code>.default</code> attribute has now been added to the DeviceStorage API (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=874213" title="FIXED: DeviceStorage: Add a .default attribute to the device storage object.">bug 874213</a>)</li>
 <li>The TCP Socket API has landed (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=797561" title="FIXED: Expose a server tcp socket API to web applications">bug 797561</a>)</li>
 <li>Make the last argument (doctype) to <a href="/zh-TW/docs/Web/API/DOMImplementation/createDocument" title="The documentation about this has not yet been written; please consider contributing!"><code>DOMImplementation.createDocument</code></a> optional (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=909859" title="FIXED: Make the doctype argument of createDocument optional">bug 909859</a>).</li>
 <li>Implement the new <a href="/zh-TW/docs/Web/API/Element/classList" title="Element.classList 唯讀屬性代表了該元素所擁有之類別屬性（Class Attribute）的即時更新集－DOMTokenList。"><code>element.classList</code></a> specification which permits adding/removing several classes with one call (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=814014" title="FIXED: implement the new classList specification which permits adding/removing several classes with one call">bug 814014</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/URL/URL" title="The documentation about this has not yet been written; please consider contributing!"><code>URL()</code></a> constructor have been implemented on the <a href="/zh-TW/docs/Web/API/URL" title="URL 介面提供了建立 URL 物件的靜態方法。"><code>URL</code></a> interface (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=887364" title="FIXED: Implement URL API">bug 887364</a>).</li>
 <li>The properties <a href="/zh-TW/docs/Web/API/URLUtils/origin" title="The documentation about this has not yet been written; please consider contributing!"><code>URLUtils.origin</code></a>, <a href="/zh-TW/docs/Web/API/URLUtils/password" title="The documentation about this has not yet been written; please consider contributing!"><code>URLUtils.password</code></a>, and <a href="/zh-TW/docs/Web/API/URLUtils/username" title="The documentation about this has not yet been written; please consider contributing!"><code>URLUtils.username</code></a> are now available to all interfaces implementing <a href="/zh-TW/docs/Web/API/URLUtils" title="The documentation about this has not yet been written; please consider contributing!"><code>URLUtils</code></a>: <a href="/zh-TW/docs/Web/API/URL" title="URL 介面提供了建立 URL 物件的靜態方法。"><code>URL</code></a>, <a href="/zh-TW/docs/Web/API/Location" title="The documentation about this has not yet been written; please consider contributing!"><code>Location</code></a>, <a href="/zh-TW/docs/Web/API/HTMLAnchorElement" title="The documentation about this has not yet been written; please consider contributing!"><code>HTMLAnchorElement</code></a>, and <a href="/zh-TW/docs/Web/API/HTMLAreaElement" title="The documentation about this has not yet been written; please consider contributing!"><code>HTMLAreaElement</code></a> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=887364" title="FIXED: Implement URL API">bug 887364</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/URL" title="URL 介面提供了建立 URL 物件的靜態方法。"><code>URL</code></a> interface is now accessible from Web Workers (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=887364" title="FIXED: Implement URL API">bug 887364</a>).</li>
 <li>IndexedDB can now be used as a "optimistic" storage area so it doesn't require any prompts and data is stored in a pool with LRU eviction policy, in short temporary storage (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=785884" title="FIXED: Implement support for temporary storage (aka shared pool)">bug 785884</a>).</li>
 <li>Path of the persistent storage has been changed from &lt;profile&gt;/indexedDB to &lt;profile&gt;/storage/persistent (on b2g from /data/local/indexedDB to /data/local/storage/persistent).</li>
 <li>The <a href="/en-US/docs/Web_Audio_API" title="/en-US/docs/Web_Audio_API">Web Audio API</a> is now supported. An incomplete implementation was previously available behind a preference (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=779297" title="FIXED: Implement and ship Web Audio">bug 779297</a>).</li>
 <li>Some IME related keys on Windows are supported by <code>KeyboardEvent.key</code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=865565" title="FIXED: D3E KeyboardEvent.key values of IME related keys should be considered with keyboard layout locale">bug 865565</a>), see <a href="/en-US/docs/Web/API/KeyboardEvent#keyname_table_win" title="/en-US/docs/Web/API/KeyboardEvent#keyname_table_win">the key name table</a> for the detail.</li>
 <li>Firefox for Metro now dispatches key events in the same way as the desktop version (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=843236" title="FIXED: Defect - Send the correct DOM keycodes in keyboard events from metro widget for US and non-US keyboards">bug 843236</a>).</li>
 <li><code>keypress</code> event is no longer dispatched if <code>preventDefault()</code> of preceding <code>keydown</code> event is called (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=501496" title="FIXED: preventDefault on keydown does not cancel following keypress">bug 501496</a>), see <a href="/en-US/docs/Web/Reference/Events/keydown#preventDefault()_of_keydown_event" title="/en-US/docs/Web/Reference/Events/keydown#preventDefault()_of_keydown_event">the document of <code>keydown</code> event</a> for the detail.</li>
 <li>Renamed the <code>Future</code> interface to <code>Promise</code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=884279" title="FIXED: renaming future to promise">bug 884279</a>).</li>
 <li>The <code>srcDoc</code> property on the <a href="/zh-TW/docs/Web/API/HTMLIFrameElement" title="The documentation about this has not yet been written; please consider contributing!"><code>HTMLIFrameElement</code></a> interface, allowing the inline specification of the content of an <a href="/zh-TW/docs/Web/HTML/Element/iframe" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;iframe&gt;</code></a>, is now supported (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=802895" title="FIXED: implement &lt;iframe srcdoc=''> to allow document content in iframe to be specified inline">bug 802895</a>).</li>
 <li>The <code>createTBody()</code> method on the <a href="/zh-TW/docs/Web/API/HTMLTableElement" title="The documentation about this has not yet been written; please consider contributing!"><code>HTMLTableElement</code></a> interface, allowing to get its <a href="/zh-TW/docs/Web/HTML/Element/tbody" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;tbody&gt;</code></a>, is now supported (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=813034" title="FIXED: Implement table.createTBody">bug 813034</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/Range/collapse" title="The documentation about this has not yet been written; please consider contributing!"><code>Range.collapse()</code></a> method <code>toStart</code> parameter is now optional and default to <code>false</code>, like defined in the spec (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=891340" title="FIXED: Make Range.collapse optional and default to false">bug 891340</a>).</li>
 <li>Support of <a href="/zh-TW/docs/Web/API/ParentNode" title="ParentNode 介面定義了可以擁有子節點之 Node 物件的方法。"><code>ParentNode</code></a> interface on <a href="/zh-TW/docs/Web/API/Document" title="Document 介面代表所有在瀏覽器中載入的網頁，也是作為網頁內容 DOM 樹"><code>Document</code></a> and <a href="/zh-TW/docs/Web/API/DocumentFragment" title="DocumentFragment 介面表示了一個沒有父節點的最小化文件物件。DocumentFragment 被當作一種輕量化的 Document，用如同標準文件一般的方式保存片段的文件結構（由節點組成）。關鍵的區別在於文件片段不是真實的 DOM 結構，文件片段的變動並不會影響目前的網頁文件，也不會導致回流（reflow）或引起任何影響效能的情況發生。"><code>DocumentFragment</code></a> has been added (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=895974" title="FIXED: document.firstElementChild is not defined">bug 895974</a>).</li>
 <li>The <code>previousElementSibling</code> and <code>nextElementSibling</code> have been moved to <a href="/zh-TW/docs/Web/API/ChildNode" title="childNodes 介面定義了可以擁有父節點之 Node 物件的方法。"><code>ChildNode</code></a> allowing them to be called not only on a <a href="/zh-TW/docs/Web/API/Element" title="Element 介面表示了一個在 Document 中的物件，其描述了各類型元素的共同屬性與方法，Element 的子介面則定義了不同類型元素的具體行為並增加額外的功能。"><code>Element</code></a> object but also on a <a href="/zh-TW/docs/Web/API/CharacterData" title="CharacterData 介面表示了含有字元的 Node 物件。CharacterData 為抽象介面，代表不會有型別為 CharacterData 的物件。物件是由其子介面，如 Text、Comment 或 ProcessingInstruction 等非抽象介面來實作。"><code>CharacterData</code></a> or <a href="/zh-TW/docs/Web/API/DocumentType" title="DocumentType 介面表示了一個代表文件類型的 Node 節點。"><code>DocumentType</code></a> object (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=895974" title="FIXED: document.firstElementChild is not defined">bug 895974</a>).</li>
 <li>The <code>navigator.geolocation</code> property has been updated to match the spec. It never returns <code>null</code>. When the preference <code>geo.enabled</code> is set to <code>false</code>, it now returns <code>undefined</code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=884921" title="FIXED: Align navigator.geolocation with spec">bug 884921</a>).</li>
 <li>The <code>videoPlaybackQuality</code> attribute on the <a href="/zh-TW/docs/Web/API/HTMLVideoElement" title="The documentation about this has not yet been written; please consider contributing!"><code>HTMLVideoElement</code></a> interface has been changed to the <code>getVideoPlaybackQuality</code> method. (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=889205" title="FIXED: Make HTMLVideoElement.videoPlaybackQuality a method">bug 889205</a>)</li>
 <li>Support for the <a href="https://developer.mozilla.org/en-US/docs/Web/API/Range.Range" title="The Range() constructor returns a newly created Range object whose start and end is the global Document object."><code>Range()</code></a> constructor has been added (<a class="external" href="https://bugzilla.mozilla.org/show_bug.cgi?id=868999" title="FIXED: Range should be constructable">bug 868999</a>).</li>
 <li>Support for the <a href="https://developer.mozilla.org/en-US/docs/Web/API/Text.Text" title="The Text() constructor returns a newly created Text object with the optional DOMString given in parameter as its textual content."><code>Text()</code></a> constructor has been added (<a class="external" href="https://bugzilla.mozilla.org/show_bug.cgi?id=869000" title="FIXED: Text should be constructable">bug 869000</a>).</li>
 <li>Support for the <a href="https://developer.mozilla.org/en-US/docs/Web/API/Comment.Comment" title="The Comment() constructor returns a newly created Comment object with the optional DOMString given in parameter as its textual content."><code>Comment()</code></a> constructor has been added (<a class="external" href="https://bugzilla.mozilla.org/show_bug.cgi?id=869006" title="FIXED: Comment should be constructable">bug 869006</a>).</li>
 <li>Support for the <a href="https://developer.mozilla.org/en-US/docs/Web/API/DocumentFragment.DocumentFragment" title="The DocumentFragment() constructor returns an empty newly created DocumentFragment object ."><code>DocumentFragment()</code></a> constructor has been added (<a class="external" href="https://bugzilla.mozilla.org/show_bug.cgi?id=869002" title="FIXED: DocumentFragment should be constructable">bug 869002</a>).</li>
 <li>The <a href="https://developer.mozilla.org/en-US/docs/Web/API/FocusEvent" title="The FocusEvent interface represents focus-related events like focus, blur, focusin, or focusout."><code>FocusEvent</code></a> interface has been implemented (<a class="external" href="https://bugzilla.mozilla.org/show_bug.cgi?id=855741" title="FIXED: FocusEvent interface is missing">bug 855741</a>).</li>
 <li>Support for the <a href="https://developer.mozilla.org/en-US/docs/Web/API/ChildNode.remove" title="The ChildNode.remove method removes the object from the tree it belongs to."><code>ChildNode.remove()</code></a> method has been added (<a class="external" href="https://bugzilla.mozilla.org/show_bug.cgi?id=856629" title="FIXED: Implement ChildNode.remove()">bug 856629</a>).</li>
 <li>The interfaces related to the <a href="https://developer.mozilla.org/en-US/docs/Web/HTML/Element/track" title="The track element is used as a child of the media elements—&lt;audio> and &lt;video>—and does not represent anything on its own. It lets you specify timed text tracks (or time-based data)."><code>&lt;track&gt;</code></a> element, <a href="https://developer.mozilla.org/en-US/docs/Web/API/HTMLTrackElement" title="The HTMLTrackElement interface provides access to the properties of &lt;track> elements, as well as methods to manipulate them."><code>HTMLTrackElement</code></a>, <a class="new" href="https://developer.mozilla.org/en-US/docs/Web/API/TextTrack" title="The documentation about this has not yet been written; please consider contributing!"><code>TextTrack</code></a>, <a class="new" href="https://developer.mozilla.org/en-US/docs/Web/API/TextTrackCue" title="The documentation about this has not yet been written; please consider contributing!"><code>TextTrackCue</code></a>, <a class="new" href="https://developer.mozilla.org/en-US/docs/Web/API/TextTrackList" title="The documentation about this has not yet been written; please consider contributing!"><code>TextTrackList</code></a>, and <a class="new" href="https://developer.mozilla.org/en-US/docs/Web/API/TextTrackCueList" title="The documentation about this has not yet been written; please consider contributing!"><code>TextTrackCueList</code></a> have been implemented behind the <code>media.webvtt.enabled</code> property, defaulting to <code>false</code> (<a class="external" href="https://bugzilla.mozilla.org/show_bug.cgi?id=833385" title="FIXED: [webvtt] Implement Track element and TextTrack* DOM classes">bug 833385</a>).</li>
 <li>The <a class="new" href="https://developer.mozilla.org/en-US/docs/Web/API/Gamepad" title="The documentation about this has not yet been written; please consider contributing!"><code>Gamepad</code></a> interface, and <a class="new" href="https://developer.mozilla.org/en-US/docs/Web/API/Navigator.getGamepads" title="The documentation about this has not yet been written; please consider contributing!"><code>Navigator.getGamepads</code></a> have been implemented behind the <code>dom.gamepad.enabled</code> property, defaulting to <code>false</code> (<a class="external" href="https://bugzilla.mozilla.org/show_bug.cgi?id=690935" title="FIXED: Implement navigator.getGamepads() method">bug 690935</a>).</li>
 <li>On desktop Firefox only, <code>HTMLCanvasElement.getContext()</code> can now take the <code>webgl</code> value, in addition to <code>experimental-webgl</code> (<a class="external" href="https://bugzilla.mozilla.org/show_bug.cgi?id=870232" title='FIXED: Implement getContext("webgl") for Desktop FF'>bug 870232</a>).</li>
 <li>The non-standard method <code>mozLoadFrom()</code> of <a href="https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement" title="The HTMLMediaElement interface has special properties and methods (beyond the properties and methods available for all children of HTMLElement), that are common to all media-related objects."><code>HTMLMediaElement</code></a> has been removed (<a class="external" href="https://bugzilla.mozilla.org/show_bug.cgi?id=877135" title="FIXED: Remove mozLoadFrom">bug 877135</a>).</li>
 <li>D3E <a href="/en-US/docs/DOM/KeyboardEvent#Key_names_and_Char_values" title="/en-US/docs/DOM/KeyboardEvent#Key_names_and_Char_values"><code>KeyboardEvent.key</code></a> is now supported, but only for non-printable keys (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=842927" title="FIXED: Implement DOM3 KeyboardEvent.key only for non-printable key, first">bug 842927</a>).</li>
 <li>The <code>title</code> attribute of <a href="/zh-TW/docs/Web/API/DOMImplementation/createHTMLDocument" title="The documentation about this has not yet been written; please consider contributing!"><code>DOMImplementation.createHTMLDocument</code></a> is now optional as per updated DOM specification.</li>
 <li>The ability to add a sidebar panel (<code>window.sidebar.addPanel</code>) has been dropped (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=691647" title="FIXED: clean up nsISidebar (remove window.sidebar.addPanel/addPersistentPanel)">bug 691647</a>).</li>
 <li>The unprefixed <a href="/zh-TW/docs/Web/API/Window/requestAnimationFrame" title="The documentation about this has not yet been written; please consider contributing!"><code>Window.requestAnimationFrame</code></a> and <a href="/zh-TW/docs/Web/API/Window/cancelAnimationFrame" title="The documentation about this has not yet been written; please consider contributing!"><code>Window.cancelAnimationFrame</code></a> methods has been added (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=704063" title="FIXED: Add unprefixed requestAnimationFrame">bug 704063</a>).</li>
 <li>The callback for <a href="/zh-TW/docs/Web/API/Window/requestAnimationFrame" title="The documentation about this has not yet been written; please consider contributing!"><code>Window.requestAnimationFrame</code></a> now receives a <a href="/zh-TW/docs/Web/API/DOMHighResTimeStamp" title="The documentation about this has not yet been written; please consider contributing!"><code>DOMHighResTimeStamp</code></a> as argument instead of the less precise <a href="/zh-TW/docs/Web/API/DOMTimeStamp" title="The documentation about this has not yet been written; please consider contributing!"><code>DOMTimeStamp</code></a> used in the unprefixed version (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=753453" title="FIXED: requestAnimationFrame callback should return DOMHighResTimeStamp">bug 753453</a>).</li>
 <li>The text argument for <a href="/zh-TW/docs/Web/API/Window/alert" title="The documentation about this has not yet been written; please consider contributing!"><code>window.alert</code></a> and <a href="/zh-TW/docs/Web/API/Window/confirm" title="The documentation about this has not yet been written; please consider contributing!"><code>window.confirm</code></a> is now optional (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=861605" title="FIXED: Make the arguments to Window.alert, Window.confirm optional">bug 861605</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/HTMLMediaElement/initialTime" title="The documentation about this has not yet been written; please consider contributing!"><code>HTMLMediaElement.initialTime</code></a> property, removed from the spec, is no more supported (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=742537" title="FIXED: Remove HTMLMediaElement.initialTime">bug 742537</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/AnimationEvent/AnimationEvent" title="The documentation about this has not yet been written; please consider contributing!"><code>AnimationEvent()</code></a> constructor has been added (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=848293" title="FIXED: Update AnimationEvent to be compatible with the spec">bug 848293</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/AnimationEvent/pseudoElement" title="The documentation about this has not yet been written; please consider contributing!"><code>AnimationEvent.pseudoElement</code></a> property has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=848293" title="FIXED: Update AnimationEvent to be compatible with the spec">bug 848293</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/TransitionEvent/TransitionEvent" title="The documentation about this has not yet been written; please consider contributing!"><code>TransitionEvent()</code></a> constructor has been added (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=848291" title="FIXED: Update TransitionEvent to be compatible with the spec">bug 848291</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/TransitionEvent/pseudoElement" title="The documentation about this has not yet been written; please consider contributing!"><code>TransitionEvent.pseudoElement</code></a> property has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=848291" title="FIXED: Update TransitionEvent to be compatible with the spec">bug 848291</a>).</li>
 <li>The non-standard <a href="/zh-TW/docs/Web/API/TransitionEvent/initTransitionEvent" title="The documentation about this has not yet been written; please consider contributing!"><code>TransitionEvent.initTransitionEvent()</code></a> and <a href="/zh-TW/docs/Web/API/AnimationEvent/initAnimationEvent" title='The AnimationEvent.initAnimationEvent() method Initializes an animation event created using the deprecated Document.createEvent("AnimationEvent") method.'><code>AnimationEvent.initAnimationEvent()</code></a> have been removed (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=868751" title='FIXED: Remove support for document.createEvent("AnimationEvent"), document.createEvent("TransitionEvent"), AnimationEvent.initAnimationEvent, and TransitionEvent.initTransitionEvent'>bug 868751</a>).</li>
 <li>Support for the <code>multipart</code> property on <code>XMLHttpRequest</code> and <code>multipart/x-mixed-replace</code> responses in <code>XMLHttpRequest</code> has been removed. This was a Gecko-only feature that was never standardized. <a href="/en-US/docs/Server-sent_events" title="Server-sent_events">Server-Sent Events</a>, <a href="/en-US/docs/WebSockets" title="WebSockets">Web Sockets</a> or inspecting <code>responseText</code> from progress events can be used instead.</li>
 <li>Support for <a href="/en-US/docs/WebAPI/Using_Web_Notifications" title="/en-US/docs/WebAPI/Using_Web_Notifications">Web Notifications</a> has been landed (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=782211" title="FIXED: Implement notification API spec">bug 782211</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/FormData" title="FormData 介面提供了一個簡單的方式來建立表單欄位與其值的名值對（key/value）集合，還能方便的使用 XMLHttpRequest.send() 方法來送出表單資料。如果 &lt;form> 元素的 enctype 屬性（attribute）值為 multipart/form-data 編碼，則 FormData 物件也會採用與表單相同的格式。"><code>FormData</code></a>  <code>append</code> method now accepts a third optional <code>filename</code> parameter (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=690659" title="FIXED: filename parameter in the FormData.append method">bug 690659</a>).</li>
 <li><a href="/zh-TW/docs/Web/API/Node/isSupported" title="The documentation about this has not yet been written; please consider contributing!"><code>Node.isSupported</code></a> has been removed (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=801562" title="FIXED: Remove Node.isSupported">bug 801562</a>).</li>
 <li><a href="/zh-TW/docs/Web/API/Node/setUserData" title="The documentation about this has not yet been written; please consider contributing!"><code>Node.setUserData</code></a> and <a href="/zh-TW/docs/Web/API/Node/getUserData" title="The documentation about this has not yet been written; please consider contributing!"><code>Node.getUserData</code></a> has been removed for web content and are deprecated for chrome content (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=842372" title="FIXED: Make getUserData and setUserData ChromeOnly">bug 842372</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/Element/attributes" title="The documentation about this has not yet been written; please consider contributing!"><code>Element.attributes</code></a> property has been moved there from <a href="/zh-TW/docs/Web/API/Node" title="Node 是一個被多種 DOM 類型繼承的介面，它讓各種類型的 DOM 都能以同樣的方式來操作。如繼承了相同的方法，或能以相同的方式測試。"><code>Node</code></a> as required by the spec (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=844134" title="FIXED: attributes should be defined on Element and not Node">bug 844134</a>).</li>
 <li>The Mac OS X backend for <a href="/zh-TW/docs/Web/API/DeviceLightEvent" title="The documentation about this has not yet been written; please consider contributing!"><code>Ambient Light Events</code></a> has been implemented.</li>
 <li>Elements in the HTML namespace with local names <a href="/zh-TW/docs/Web/HTML/Element/bgsound" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;bgsound&gt;</code></a>, <a href="/zh-TW/docs/Web/HTML/Element/multicol" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;multicol&gt;</code></a>, and <a href="/zh-TW/docs/Web/HTML/Element/image" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;image&gt;</code></a> no longer implement the <a href="/zh-TW/docs/Web/API/HTMLSpanElement" title="The documentation about this has not yet been written; please consider contributing!"><code>HTMLSpanElement</code></a> interface.  <a href="/zh-TW/docs/Web/HTML/Element/bgsound" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;bgsound&gt;</code></a> and <a href="/zh-TW/docs/Web/HTML/Element/bgsound" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;bgsound&gt;</code></a> implement <a href="/zh-TW/docs/Web/API/HTMLUnknownElement" title="The documentation about this has not yet been written; please consider contributing!"><code>HTMLUnknownElement</code></a> and <a href="/zh-TW/docs/Web/HTML/Element/image" title="The documentation about this has not yet been written; please consider contributing!"><code>&lt;image&gt;</code></a> implements <a href="/zh-TW/docs/Web/API/HTMLElement" title="HTMLElement 介面表示了所有的 HTML 元素。部分元素直接實作了此介面，其它則是實作繼承自 HTMLElement 的子介面。"><code>HTMLElement</code></a>.</li>
 <li>The <a href="/zh-TW/docs/Web/API/NodeIterator/detach" title="The documentation about this has not yet been written; please consider contributing!"><code>NodeIterator.detach</code></a> method has been changed to do nothing (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=823549" title="FIXED: Make NodeIterator.detach() a no-op">bug 823549</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/BlobEvent" title="The documentation about this has not yet been written; please consider contributing!"><code>BlobEvent</code></a> interface has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=834165" title="FIXED: Implement BlobEvent">bug 834165</a>).</li>
 <li>The properties <code>HTMLMediaElement.crossorigin</code> and <code>HTMLInputElement.inputmode</code> has been removed to match the spec in <a href="/zh-TW/docs/Web/API/HTMLMediaElement/crossOrigin" title="The documentation about this has not yet been written; please consider contributing!"><code>HTMLMediaElement.crossOrigin</code></a> and <code>HTMLInputElement.inputMode</code>, respectively (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=847370" title="FIXED: HTMLMediaElement - crossOrigin vs crossorigin">bug 847370</a> and <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=850346" title="FIXED: inputmode vs inputMode for nsHTMLInputElement">bug 850346</a>).</li>
 <li>WebRTC: the Media Stream API and Peer Connection API are now supported by default.</li>
 <li>Web Components: the <a href="/zh-TW/docs/Web/API/Document/register" title="The documentation about this has not yet been written; please consider contributing!"><code>Document.register</code></a> method has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=783129" title="FIXED: Implement the document.register interface method">bug 783129</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/ProgressEvent/initProgressEvent" title="The documentation about this has not yet been written; please consider contributing!"><code>ProgressEvent.initProgressEvent()</code></a> constructor method has been removed. Uses the standard constructor, <a href="/zh-TW/docs/Web/API/ProgressEvent/ProgressEvent" title="The documentation about this has not yet been written; please consider contributing!"><code>ProgressEvent()</code></a> to construc and initialize <a href="/zh-TW/docs/Web/API/ProgressEvent" title="The ProgressEvent interface represents events measuring progress of an underlying process, like an HTTP request (for an XMLHttpRequest, or the loading of the underlying resource of an &lt;img>, &lt;audio>, &lt;video>, &lt;style> or &lt;link>)."><code>ProgressEvent</code></a> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=843489" title='FIXED: [Progress Events] Remove support for ProgressEvent.initProgressEvent() and Document.createEvent("ProgressEvent")'>bug 843489</a>).</li>
 <li>Manipulated data associated with a <code><a href="/zh-TW/docs/Web/Reference/Events/cut" title="/zh-TW/docs/Web/Reference/Events/cut">cut</a></code>, <code><a href="/zh-TW/docs/Web/Reference/Events/copy" title="/zh-TW/docs/Web/Reference/Events/copy">copy</a></code>, or <code><a href="/zh-TW/docs/Web/Reference/Events/paste" title="/zh-TW/docs/Web/Reference/Events/paste">paste</a></code> event can now be accessed via the <a href="/zh-TW/docs/Web/API/ClipboardEvent/clipboardData" title="The documentation about this has not yet been written; please consider contributing!"><code>ClipboardEvent.clipboardData</code></a> property (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=407983" title="FIXED: Add support clipboardData object for the onpaste, oncopy, oncut events">bug 407983</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/HTMLTimeElement" title="The documentation about this has not yet been written; please consider contributing!"><code>HTMLTimeElement</code></a> interface has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=629801" title="FIXED: Implement HTML5 &lt;time> element">bug 629801</a>).</li>
 <li>When a <a href="/zh-TW/docs/Web/API/Worker" title="The documentation about this has not yet been written; please consider contributing!"><code>Worker</code></a> constructor is passed an invalid URL, it now throws <a href="/zh-TW/docs/Web/API/DOMException" title="The documentation about this has not yet been written; please consider contributing!"><code>DOMException</code></a> of type <code>SECURITY_ERR</code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=587251" title="FIXED: new Worker(badURL) should throw a SECURITY_ERR">bug 587251</a>).</li>
 <li>The <code>origin</code> property has been added to the <a href="/zh-TW/docs/Web/API/Window/location" title="The documentation about this has not yet been written; please consider contributing!"><code>window.location</code></a> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=828261" title="FIXED: Implement `window.location.origin`.">bug 828261</a>).</li>
 <li>The <code>valueAsDate</code> and <code>valueAsNumber</code> methods have been added for <code>&lt;input type="time"&gt;</code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=781570" title="FIXED: implement valueAsNumber and valueAsDate for input &lt;input type=time>">bug 781570</a>).</li>
 <li>The <code>min</code> and <code>max</code> attributes now apply to <code>&lt;input type="time"&gt;</code> too (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=781572" title="FIXED: implement the min and max attribute for &lt;input type=time>">bug 781572</a>).</li>
 <li>Some new keyCodes for volume control are supported (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=674739" title="FIXED: Implement DOM3 KeyboardEvent types for audio">bug 674739</a>).</li>
 <li>Some new keyCodes for ancient keyboard layout such as AS/400 are now supported on Windows and Linux (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=833719" title="FIXED: Some function keys are not working since Firefox Version 15">bug 833719</a>).</li>
 <li>Various keyCode values for OEM sepecific keys on Windows are now supported again (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=833719" title="FIXED: Some function keys are not working since Firefox Version 15">bug 833719</a>).</li>
 <li>The function <a href="/en-US/docs/DOM/window.crypto.getRandomValues" title="DOM/window.crypto.getRandomValues"><code>window.crypto.getRandomValues</code></a> has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=440046" title="FIXED: expose secure PRNG in the DOM (window.crypto.getRandomValues)">bug 440046</a>).</li>
 <li>The methods <a href="/zh-TW/docs/Web/API/NodeIterator/expandEntityReferences" title="The documentation about this has not yet been written; please consider contributing!"><code>NodeIterator.expandEntityReferences()</code></a> and <a href="/zh-TW/docs/Web/API/TreeWalker/expandEntityReferences" title="The documentation about this has not yet been written; please consider contributing!"><code>TreeWalker.expandEntityReferences()</code></a>, no more in the latest DOM spec, has been removed (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=672190" title="FIXED: consider removing expandEntityReferences from NodeIterator and TreeWalker">bug 672190</a>).</li>
 <li>CSSOM: the method <a href="/zh-TW/docs/Web/API/CSSKeyframesRule" title="The documentation about this has not yet been written; please consider contributing!"><code>CSSKeyframesRule</code></a><code>.insertRule</code> has been removed to <a href="/zh-TW/docs/Web/API/CSSKeyframesRule" title="The documentation about this has not yet been written; please consider contributing!"><code>CSSKeyframesRule</code></a><code>.appendRule</code> to match a spec change (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=841896" title="FIXED: CSSKeyframesRule should have a `appendRule` method, not `insertRule`">bug 841896</a>).</li>
 <li>CSSOM If the given parameter given to <a href="/zh-TW/docs/Web/API/CSSStyleSheet/insertRule" title="CSSStyleSheet.insertRule() 方法新增一個新的 CSS 規則，到當前的樣式表，他伴隨著一些限制."><code>CSSStyleSheet.insertRule</code></a> contains more than one rule, a <a href="/zh-TW/docs/Web/API/DOMException" title="The documentation about this has not yet been written; please consider contributing!"><code>DOMException</code></a> with a <code>SYNTAX_ERR</code> is now thrown (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=765599" title="FIXED: CSSStyleSheet.insertRule should throw when there are more than one rule">bug 765599</a>).</li>
 <li>Until now, when the same headers were repeatedly set with <a href="https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest#setRequestHeader" title="/en-US/docs/Web/API/XMLHttpRequest#setRequestHeader"><code>XMLHttpRequest.setRequestHeader</code></a>, the last-specified value was used. This behavior has been changed to comply with the spec, so those values will be properly combined (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=819051" title="FIXED: XMLHttpRequest.setRequestHeader() overwrites instead of combines values for the same header.">bug 819051</a>).</li>
 <li><a href="/zh-TW/docs/Web/API/HTMLMediaElement" title="The documentation about this has not yet been written; please consider contributing!"><code>HTMLMediaElement</code></a> supports now <code>playbackRate</code> (both read and write), with pitch correction. Pitch correction can be controlled using the property <code>mozPreservesPitch</code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=495040" title="FIXED: Implement playbackRate and related bits">bug 495040</a>).</li>
 <li>CSSOM: Support for the new <a href="/zh-TW/docs/Web/API/CSSGroupingRule" title="The documentation about this has not yet been written; please consider contributing!"><code>CSSGroupingRule</code></a> and <a href="/zh-TW/docs/Web/API/CSSConditionRule" title="The documentation about this has not yet been written; please consider contributing!"><code>CSSConditionRule</code></a> has been added (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=814907" title="FIXED: implement CSSGroupingRule and CSSConditionRule">bug 814907</a>).</li>
 <li>CSSOM: On <a href="/zh-TW/docs/Web/API/CSSRule" title="The documentation about this has not yet been written; please consider contributing!"><code>CSSRule</code></a> the constant CSSRule.MOZ_KEYFRAME_RULE and CSSRule.MOZ_KEYFRAMES_RULE have been unprefixed to CSSRule.KEYFRAME_RULE and CSSRule.KEYFRAMES_RULE. The prefixed version are temporarily kept for helping Web author to transition their code <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=816431" title="FIXED: unprefix CSSRule.MOZ_KEYFRAME{,S}_RULE constants">bug 816431</a>).</li>
 <li>CSSOM: It is now possible to set the value of <code>conditionText</code> for <a href="/zh-TW/docs/Web/API/CSSMediaRule" title="The documentation about this has not yet been written; please consider contributing!"><code>CSSMediaRule</code></a> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=815021" title="FIXED: implement CSSMediaRule.conditionText assignment">bug 815021</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/DOMParser" title="DOMParser可以將XML或是HTML格式的字串轉成DOM 文件. DOMParser的規格請參閱DOM解譯與串流化."><code>DOMParser</code></a> <code>parseFromStream</code> and <code>parseFromBuffer</code> methods are no longer available from web content (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=816410" title="FIXED: Convert XMLSerializer and DOMParser to WebIDL bindings">bug 816410</a>).</li>
 <li>The <code><a href="/en-US/docs/XMLSerializer">XMLSerializer</a></code> <code>serializeToStream</code> method is no longer available from web content (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=816410" title="FIXED: Convert XMLSerializer and DOMParser to WebIDL bindings">bug 816410</a>).</li>
 <li><a href="/zh-TW/docs/Web/API/TextDecoder" title="The documentation about this has not yet been written; please consider contributing!"><code>TextDecoder</code></a> and <a href="/zh-TW/docs/Web/API/TextEncoder" title="The documentation about this has not yet been written; please consider contributing!"><code>TextEncoder</code></a> interfaces have been updated to match the latest spec (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=801487" title="FIXED: Update StringEncoding API per the latest spec and fix some bugs">bug 801487</a>) and are now available in Workers (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=795542" title="FIXED: Implement StringEncoding API in Workers">bug 795542</a>).</li>
 <li>Support for the <code>CSS.supports()</code> method has been added, behind the <code><code>layout.css.supports-rule.enabled</code></code> pref (off by default) (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=779917" title="FIXED: Implement CSS.supports()">bug 779917</a>).</li>
 <li>Support for UndoManager has been added (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=617532" title='FIXED: implement the HTML5 "undo history" feature (UndoManager interface)'>bug 617532</a>).</li>
 <li>The CSSOM <a href="/zh-TW/docs/Web/API/Document/caretPositionFromPoint" title="The documentation about this has not yet been written; please consider contributing!"><code>document.caretPositionFromPoint</code></a> method, which returns a <a href="/zh-TW/docs/Web/API/CaretPosition" title="The documentation about this has not yet been written; please consider contributing!"><code>CaretPosition</code></a> has been implemented.</li>
 <li>The index argument of the <a href="/zh-TW/docs/Web/API/TableRow/insertCell" title="The documentation about this has not yet been written; please consider contributing!"><code>tableRow.insertCell</code></a> and <a href="/zh-TW/docs/Web/API/Table/insertRow" title="The documentation about this has not yet been written; please consider contributing!"><code>table.insertRow</code></a> methods has been made optional as per HTML specification.</li>
 <li><a href="/zh-TW/docs/Web/API/Navigator/getUserMedia" title="The documentation about this has not yet been written; please consider contributing!"><code>Navigator.getUserMedia</code></a>, still prefixed as <code>Navigator.mozGetUserMedia</code> is now activated by default.</li>
 <li>The third, optional, <code>transfer</code> argument of <a href="/zh-TW/docs/Web/API/Window/postMessage" title="The documentation about this has not yet been written; please consider contributing!"><code>Window.postMessage</code></a> is now supported. It allows to transfer a sequence of <a href="/zh-TW/docs/Web/API/Transferable" title="The documentation about this has not yet been written; please consider contributing!"><code>Transferable</code></a> objects to the destination (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=822094" title="FIXED: Implement transfer parameter of window.postMessage">bug 822094</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/Element/getElementsByTagName" title="The documentation about this has not yet been written; please consider contributing!"><code>element.getElementsByTagName</code></a> method will now return <code>HTMLCollection</code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=799464" title="FIXED: Make Element.getElementsBy* return HTMLCollection">bug 799464</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/File" title="File 介面提供了檔案的資訊並且允許網頁中的 JavaScript 存取檔案的內容。"><code>File</code></a> <code>mozLastModifiedDate</code> property has been implemented. (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=793955" title="FIXED: [DeviceStorage] files returned by DeviceStorage.get() don't always have lastModifiedDate">bug 793955</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/File" title="File 介面提供了檔案的資訊並且允許網頁中的 JavaScript 存取檔案的內容。"><code>File</code></a> <code>lastModifiedDate</code> property returns the current date, when the date of the last modification is unknown. (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=793459" title="FIXED: Update File.lastModifiedDate to latest spec">bug 793459</a>.</li>
 <li>The <a href="/zh-TW/docs/Web/API/CanvasRenderingContext2D" title='要取得此實作此介面的實體物件，可以於一個 &amp;amp;lt;canvas> 元素上以 "2d" 為參數呼叫 getContext() 方法：'><code>CanvasRenderingContext2D</code></a> <code>isPointInStroke</code> method has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=803124" title="FIXED: Implement isPointInStroke">bug 803124</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/HTMLCanvasElement" title="HTMLCanvasElement 介面提供控制 canvas 元素的屬性和方法. HTMLCanvasElement 介面也繼承了 HTMLElement 介面的屬性和方法."><code>HTMLCanvasElement</code></a> <code>toBlob</code> method has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=648610" title="FIXED: Implement &lt;canvas>.toBlob">bug 648610</a>).</li>
 <li>The <a href="/zh-TW/docs/Web/API/Node/isSupported" title="The documentation about this has not yet been written; please consider contributing!"><code>Node.isSupported</code></a> and the <a href="/zh-TW/docs/Web/API/Document/implementation" title="The documentation about this has not yet been written; please consider contributing!"><code>document.implementation.hasFeature()</code></a> methods have been changed to always return <code>true</code> (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=801425" title="FIXED: Make hasFeature() and isSupported() always return true">bug 801425</a>).</li>
 <li>When calling <code>document.createElement(null)</code>, <code>null</code> will now be stringified and works like <code>document.createElement("null")</code>.</li>
</ul>

<h2 id="SVG">SVG</h2>

<p>General Gecko:</p>

<ul>
 <li>Inconsistent renderings of <code><a href="/zh-TW/docs/Web/MathML/Element/mmultiscripts" title="&lt;mmultiscripts>">&lt;mmultiscripts&gt;</a></code>,  <code><a href="/zh-TW/docs/Web/MathML/Element/msub" title="&lt;msub>">&lt;msub&gt;</a></code>, <code><a href="/zh-TW/docs/Web/MathML/Element/msup" title="&lt;msup>">&lt;msup&gt;</a></code> and <code><a href="/zh-TW/docs/Web/MathML/Element/msubsup" title="&lt;msubsup>">&lt;msubsup&gt;</a></code> have been unified and the error handling of these elements has been improved (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=827713" title="FIXED: Inconsistent rendering of mub / mup / msubsup / mmultiscripts">bug 827713</a>).</li>
 <li>The <a href="/en-US/docs/Web/SVG/Attribute/paint-order" title="/en-US/docs/Web/SVG/Attribute/paint-order">paint-order</a> attribute has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=828805" title="FIXED: implement paint-order property from SVG 2">bug 828805</a>).</li>
 <li>The implementation of the <code>contentScriptType</code> and <code>contentStyleType</code> properties has been removed from <a href="https://developer.mozilla.org/en-US/docs/Web/API/SVGSVGElement" title="/en-US/docs/Web/API/SVGSVGElement"><code>SVGSVGElement</code></a> along with the removal from SVG2 (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=819731" title="FIXED: remove contentStyleType and contentScriptType from SVGSVGElement">bug 819731</a>).</li>
</ul>

<h2 id="MathML">MathML</h2>

<p>General Gecko:</p>

<ul>
 <li>The <code>dir</code> attribute for controlling directionality of formulas on e.g. <code><a href="https://developer.mozilla.org/en-US/docs/Web/MathML/Element/math" title="&lt;math>">&lt;math&gt;</a></code> or <code><a href="https://developer.mozilla.org/en-US/docs/Web/MathML/Element/mrow" title="&lt;mrow>">&lt;mrow&gt;</a></code> elements is now equivalent to using the <a href="https://developer.mozilla.org/en-US/docs/Web/CSS/direction" title=""><code>direction</code></a> CSS property.</li>
 <li>The equal sign ("=") is now <a href="https://developer.mozilla.org/en-US/docs/Web/MathML/Element/mo#attr-stretchy">stretchable</a>.</li>
 <li>The "<code>updiagonalarrow</code>" value for the <code>notation</code> attribute on <code><a href="https://developer.mozilla.org/en-US/docs/Web/MathML/Element/menclose" title="&lt;menclose>">&lt;menclose&gt;</a></code> elements has been added.</li>
 <li>Negative widths for the <code><a href="/zh-TW/docs/Web/MathML/Element/mspace" title="&lt;mspace>">&lt;mspace&gt;</a></code> element has been implemented (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=717546" title="FIXED: Implement mspace with negative width">bug 717546</a>).</li>
 <li>The <code><a href="/zh-TW/docs/Web/MathML/Element/semantics" title="&lt;semantics>">&lt;semantics&gt;</a></code> element now determines the visible child as described in the MathML3 specification.</li>
 <li>To help MathML authors debugging "invalid-markup" errors in their documents, MathML parsing errors (such as having too many / too few child elements) and warnings about deprecated attributes or wrong attribute values are now reported to the <a href="/en-US/docs/Error_Console" title="Error_Console">Error Console</a>.</li>
 <li>The <code>scriptminsize</code> attribute now accepts unitless values and percent values. They are interpreted as multiples of the default value ("<code>8pt</code>").</li>
 <li>Unitless values are now also allowed for the <code>mathsize</code> and <code>fontsize</code> attributes; they multiply the default value.</li>
</ul>

<h2 id="Network">Network</h2>

<p>General Gecko:</p>

<ul>
 <li>We continue to update our CSP implementation to match the CSP 1.0 spec, which reached Candidate Recommendation:
  <ul>
   <li>Support for the spec-compliant <code>Content-Security-Policy</code> HTTP header (in addition to the experimental <code>X-Content-Security-Policy</code>) has been added (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=783049" title="FIXED: CSP : use existing/old parser for X-Content-Security-Policy header, new/CSP 1.0 spec compliant parser for Content-Security-Policy header">bug 783049</a>). <strong>Note</strong>: the patch for this new header landed in Firefox 21, it is disabled on builds (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=842657" title="FIXED: Flip the pref to enable the CSP 1.0 parser for Firefox">bug 842657</a>).</li>
  </ul>
 </li>
</ul>

<h2 id="Worker">Worker</h2>

<p>General Gecko:</p>

<ul>
 <li>The functions <a href="/zh-TW/docs/Web/API/Window/URL/createObjectURL" title="The documentation about this has not yet been written; please consider contributing!"><code>URL.createObjectURL</code></a> and <a href="/zh-TW/docs/Web/API/Window/URL/revokeObjectURL" title="The documentation about this has not yet been written; please consider contributing!"><code>URL.revokeObjectURL</code></a> are now included in the set of <a href="/en-US/docs/DOM/Worker/Functions_available_to_workers" title="DOM/Worker/Functions_available_to_workers">functions available to workers</a>.</li>
</ul>

<h2 id="Security">Security</h2>

<p>General Gecko:</p>

<ul>
 <li>Mixed content blocking. Firefox will no longer load non-secure (http) resources on secure (https) pages (<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=834836" title="FIXED: Turn on pref to block mixed active content">bug 834836</a>).</li>
 <li>The standard syntax of <a href="/en-US/docs/Security/CSP" title="/en-US/docs/Security/CSP">CSP</a> 1.0 policies are now implemented and enforced by default.</li>
</ul>

<h2 id="XForms">XForms</h2>

<p>General Gecko:</p>

<p>Support for <a href="/en-US/docs/XForms" title="XForms">XForms</a> has been <a href="http://www.philipp-wagner.com/blog/2011/07/the-future-of-mozilla-xforms/" title="http://www.philipp-wagner.com/blog/2011/07/the-future-of-mozilla-xforms/"><strong>removed</strong></a> in Firefox 19.</p>

<h2 id="See_also">See also</h2>

<ul>
 <li><a href="http://www.mozilla.org/en-US/firefox/os/notes/1.2/" title="http://www.mozilla.org/en-US/firefox/os/notes/1.2/">Firefox OS 1.2 Notes</a></li>
</ul>

<h2 id="Older_versions">Older versions</h2>

<p></p><div class="multiColumnList">
<ul>
<li><a href="/en-US/docs/Mozilla/Firefox_OS/Releases/1.1">Firefox OS 1.1 for developers</a></li><li><a href="/en-US/docs/Mozilla/Firefox_OS/Releases/1.0.1">Firefox OS 1.0.1 for developers</a></li></ul>
</div><p></p>

<p> </p>

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