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.

Download Firefox — English (US)

Your system may not meet the requirements for Firefox, but you can try one of these versions:

Download Firefox — English (US)

Firefox is no longer supported on Windows 8.1 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Firefox is no longer supported on macOS 10.14 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

81.0.1 Firefox Release

Version 81.0.1, first offered to Release channel users on October 1, 2020

Fixed missing content on Blackboard course listings (bug 1665447)
Resolved incorrect scaling of Flash content on HiDPI macOS systems (bug 1667267)
Fixes for various printing issues (bug 1667342, bug 1667510, bug 1667723)
Fixed legacy preferences not being properly applied when set via GPO (bug 1666836)
Fixed Picture-in-Picture controls being visible on audio-only page elements (bug 1666775)
Fixed high memory growth with addons such as Disconnect installed, causing browser responsiveness issues over time (bug 1658571)
Various stability improvements (bug 1661485, bug 1664542, bug 1664843)

Download Firefox — English (US)

Your system may not meet the requirements for Firefox, but you can try one of these versions:

Download Firefox — English (US)

Firefox is no longer supported on Windows 8.1 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Firefox is no longer supported on macOS 10.14 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.