Firefox for Android Beta
Release Notes

Release Notes tell you what’s new in Firefox. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the system requirements of this release.

Firefox for Android Beta

May 16, 2013

Version 22.0beta, first offered to Beta channel users on May 16, 2013


  • Social services management implemented in Add-ons Manager

  • Windows: Firefox now follows display scaling options to render text larger on high-res displays

  • Mac OS X: Download progress in Dock application icon

  • HTML5 audio/video playback rate can now be changed

  • asm.js optimizations (OdinMonkey) enabled for major performance improvements


  • WebRTC is now enabled by default!

  • For user security, the |Components| object is no longer accessible from web content

  • Pointer Lock API can now be used outside of fullscreen

  • Improved memory usage and display time when rendering images

  • Improved WebGL rendering performance through asynchronous canvas updates

  • Plain text files displayed within Firefox will now word-wrap

  • Replace fixed-ratio audio resampler in capture code with Speex resampler and eliminate pseudo-44000Hz rate


  • Developer Information
  • CSS3 Flexbox implemented and enabled by default

  • New built-in font inspector

  • Added clipboardData API for JavaScript access to a user's clipboard

  • New Web Notifications API implemented

Web Platform

  • Scrolling using some high-resolution-scroll aware touchpads feels slow


  • If you try to start Firefox using a locked profile, it will crash (see 573369)

Get the most recent version

All Firefox for Android Beta downloads