Firefox for Android
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 Release

February 19, 2013

Version 19.0, first offered to Release channel users on February 19, 2013


  • Built-in PDF viewer




  • Developer Information
  • Remote Web Console is available for connecting to Firefox on Android or Firefox OS (experimental, set devtools.debugger.remote-enabled to true)

  • Web Console CSS links now open in the Style Editor

  • Debugger now supports pausing on exceptions and hiding non-enumerable properties

  • There is now a Browser Debugger available for add-on and browser developers (experimental, set to true)

Web Platform

  • Plugins stop rendering when the top half of the plugin is scrolled off the top of the page, in HiDPI mode

  • Certain valid WebGL drawing operations are incorrectly rejected,
    leaving incomplete rendering in affected pages

  • Some function keys may not work when pressed

  • Starting Firefox with -private flag incorrectly claims you are not in Private Browsing mode


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

Get the most recent version

All Firefox for Android downloads