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.

Firefox Nightly — English (US)

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Firefox for Android Aurora

January 27, 2017

Version 53.0a2, first offered to Aurora channel users on January 27, 2017


  • Right to Left Language Support - Arabic (ar), Urdu (ur), Hebrew (he) and Persian (fa)

  • EME (Encrypted Media Extensions) DRM video enabled on Firefox for Android


  • Move Android audio/video decoder out of application process for better stability during media playback