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

November 19, 2012

Version 17.0, first offered to Release channel users on November 19, 2012


  • Click-to-play blocklisting implemented to prevent vulnerable plugin versions from running without the user's permission (see blog post)


  • 17.0.1: Font rendering issue in Firefox 17.0 (bug 814101)

  • 17.0.1: Reverted user agent change causing some website incompatibilities

  • 17.0.1: Leaving Private Browsing with Social API enabled should reset social components

  • Page scrolling on sites with fixed headers

  • Over twenty performance improvements, including fixes around the New Tab page

  • Various security fixes



  • Developer Information
  • SVG FillPaint and StrokePaint implemented

  • New Markup panel in the Page Inspector allows easy editing of the DOM

  • Improvements that make the Web Console, Debugger and Developer Toolbar faster and easier to use

  • JavaScript Maps and Sets are now iterable

Web Platform

  • Sandbox attribute for iframes implemented, enabling increased security

  • Pointer lock doesn't work in web apps


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

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All Firefox for Android downloads