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.

54.0

Firefox for Android Release

June 13, 2017

Version 54.0, first offered to Release channel users on June 13, 2017

Today's release is the first to run Firefox using multiple operating system processes for web page content, making Firefox faster and more stable than ever. Learn more about how multiple processes strike a “just right” balance between performance and memory use on the Mozilla Blog. Dive into the details (including performance benchmarks) on Medium.

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

New

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

Fixed

  • Various security fixes

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

Changed

  • Improved bookmarks sync performance

  • Improved audio and video playback in the browser