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

December 1, 2014

Version 34.0, first offered to Release channel users on December 1, 2014

We'd also like to extend a special thank you to all of the new Mozillians who contributed to this release of Firefox!



  • Various security fixes

  • CSS transitions start correctly when started at the same time as changes to display, position, overflow, and similar properties

  • MP4 videos will not play on Android L


  • Disabled SSLv3

Web Platform

  • ECMAScript 6 WeakSet Implemented

  • JavaScript Template Strings Implemented

  • CSS3 Font variants and features control (e.g. kerning) implemented

  • Device Storage API for privileged apps enabled

  • WebCrypto: RSA-OAEP, PBKDF2 and AES-KW support

  • WebCrypto: wrapKey and unwrapKey implemented

  • WebCrypto: Import/export of JWK-formatted keys

  • matches() DOM API implemented (formerly mozMatchesSelector())

  • for workers implemented

  • WebCrypto: ECDH support


  • Flash does not work on Android L

  • MP3 files do not play on Android L

Get the most recent version

All Firefox for Android downloads