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.

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

Built-in PDF viewer

Various security fixes

Startup performance improvements (bugs 715402 and 756313)
Canvas elements can export their content as an image blob using canvas.toBlob()

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 devtools.chrome.enabled to true)

CSS viewport-percentage length units implemented (vh, vw, vmin and vmax)
CSS text-transform now supports full-width
CSS @page is now supported

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)

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All Firefox for Android downloads