Firefox 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 Release

April 26, 2016

Version 46.0, first offered to Release channel users on April 26, 2016

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


  • Improved security of the JavaScript Just In Time (JIT) Compiler

  • GTK3 integration (GNU/Linux only)


  • Correct rendering for scaled SVGs that use a clip and a mask

  • Screen reader behavior with blank spaces in Google Docs corrected

  • Various security fixes


  • WebRTC fixes to improve performance and stability


Web Platform

All Firefox downloads