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.

54.0beta

Firefox Beta

April 21, 2017

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

New

  • Clearer and more detailed information for download items in the download panel

  • Bookmarks created on mobile devices are now shown in "Mobile Bookmarks” folder in the drop down list from the toolbar and Bookmarks option in the menu bar in Desktop Firefox

Developer

  • Changes for web developers

  • Create your own custom devices in Responsive Device Mode

Developer Information