Firefox 23 for developers

  • Revision slug: Mozilla/Firefox/Releases/23
  • Revision title: Firefox 23 for developers
  • Revision id: 422479
  • Created:
  • Creator: evilpie
  • Is current revision? No
  • Comment

Revision Content

This page is not complete
Firefox 23 hasn't reached its feature freeze yet. New features will be added to it in the near future.

{{ ReleaseChannelInfo("23", "23", "August 2013", "Aurora") }}

Want to help document Firefox 23? See the list of bugs that need to be written about and pitch in!

Changes for Web developers

HTML

  • The {{HTMLElement("blink")}} element  support is now completely dropped. <blink> tag makes unknown HTML object ({{bug(857820)}}).

JavaScript

DOM

  • D3E KeyboardEvent.key is now supported only for non-printable keys ({{bug(842927)}}).
  • The title attribute of {{domxref("DOMImplementation.createHTMLDocument")}} is now optional as per updated DOM specification.
  • The ability to add a sidebar panel (window.sidebar.addPanel) has been dropped ({{bug(691647)}}).
  • The unprefixed {{domxref("window.requestAnimationFrame")}} and {{domxref("window.cancelAnimationFrame")}} methods has been added.

CSS

  • The blink effect for text-decoration: blink; is dropped ({{bug(857820)}}).

MathML

  • Negative widths for the {{MathMLElement("mspace")}} element has been implemented ({{bug(717546)}}).

See also

Older versions

{{Firefox_for_developers('22')}}

Revision Source

<div class="overheadIndicator draft draftHeader">
  <strong>This page is not complete</strong>
  <div>
    Firefox 23 hasn't reached its feature freeze yet. New features will be added to it in the near future.</div>
</div>
<p>{{ ReleaseChannelInfo("23", "23", "August 2013", "Aurora") }}</p>
<p>Want to help document Firefox 23? See the <a class="external" href="http://beta.elchi3.de/doctracker/#list=fx&amp;version=23.0">list of bugs that need to be written about</a> and pitch in!</p>
<h2 id="Changes_for_Web_developers">Changes for Web developers</h2>
<h3 id="HTML">HTML</h3>
<ul>
  <li>The {{HTMLElement("blink")}} element&nbsp; support is now completely dropped. &lt;blink&gt; tag makes unknown HTML object ({{bug(857820)}}).</li>
</ul>
<h3 id="JavaScript">JavaScript</h3>
<h3 id="DOM">DOM</h3>
<ul>
  <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 only for non-printable keys ({{bug(842927)}}).</li>
  <li>The <code>title</code> attribute of {{domxref("DOMImplementation.createHTMLDocument")}} 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 ({{bug(691647)}}).</li>
  <li>The unprefixed {{domxref("window.requestAnimationFrame")}} and {{domxref("window.cancelAnimationFrame")}} methods has been added.</li>
</ul>
<h3 id="CSS">CSS</h3>
<ul>
  <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> is dropped ({{bug(857820)}}).</li>
</ul>
<h3 id="MathML">MathML</h3>
<ul>
  <li>Negative widths for the {{MathMLElement("mspace")}} element has been implemented ({{bug(717546)}}).</li>
</ul>
<h2 id="See_also">See also</h2>
<ul>
  <li><a href="http://www.mozilla.org/en-US/firefox/23.0a2/auroranotes/">Firefox 23 Aurora Notes</a></li>
  <li><a href="/en-US/docs/Site_Compatibility_for_Firefox_23">Site Compatibility for Firefox 23</a></li>
</ul>
<h3 id="Older_versions">Older versions</h3>
<p>{{Firefox_for_developers('22')}}</p>
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