Firefox Beta
Release Notes

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

November 3, 2015

Version 43.0beta, first offered to Beta channel users on November 3, 2015


  • Private Browsing with Tracking Protection offers choice of blocking additional trackers

  • Improved API support for m4v video playback

  • Users can choose search suggestions from the Awesome Bar

  • On-screen keyboard displayed on selecting input field on devices running Windows 8 or greater

  • WebRTC streaming on multiple monitors

  • Improved Big5 support for Hong Kong supplementary characters on Windows XP

  • GTK3 integration (GNU/Linux only)


  • Eyedropper tool does not work as expected when page is zoomed


All Firefox Beta downloads