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 Beta — English (US)

Firefox Privacy Notice


Firefox for Android Beta

April 21, 2017

Version 54.0beta, first offered to Beta channel users on April 21, 2017


  • Add Bulgarian (bg) and Kabyle (kab) locales


  • Fixed formatting for right-to-left languages, including formatting of preference names in about:config

  • File names correctly preserved on upload


  • More reliable audio and video playback in the browser

  • Improved bookmarks sync performance