See what’s new in Firefox!

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.

19.0

Firefox for Android Release

February 19, 2013

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

New

  • Built-in PDF viewer

Fixed

Changed

Developer

  • 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 devtools.chrome.enabled to true)

Developer Information

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

unresolved

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