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.

49.0beta

Firefox Beta

August 3, 2016

Version 49.0beta, first offered to Beta channel users on August 3, 2016

New

  • Updated Firefox Login Manager to allow HTTPS pages to use saved HTTP logins. It’s one more way Firefox is supporting Let’s Encrypt and helping users transition to a more secure web.

  • Added features to Reader Mode that make it easier on the eyes and the ears

    • Controls that allow users to adjust the width and line spacing of text
    • Narrate, which reads the content of a page out loud
  • Improved video performance for users on systems that support SSSE3 without hardware acceleration

  • HTML5 audio and video improvements

    • Files can now be looped through the built-in controls in the context menu
    • Play audio and video at 1.25× speed through the context menu
  • Enhancements for Mac users

    • Improved performance on OS X systems without hardware acceleration
    • Improved appearance of anti-aliased OS X fonts
  • Reader Mode can now read articles out loud

  • Improved appearance of anti-aliased OS X fonts

Fixed

  • Fixed an issue that prevented users from updating Firefox for Mac unless they originally installed Firefox. Now, those users as well as any user with administrative credentials can update Firefox.

Changed

Developer

Developer Information