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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.

91.0.2
Firefox Release

August 24, 2021

Version 91.0.2, first offered to Release channel users on August 24, 2021

Fixed

  • High Contrast Mode is no longer enabled by default when "Increase Contrast" is checked in macOS settings (bug 1726606)

  • Firefox no longer clears authentication data when purging trackers, to avoid repeatedly prompting for a password (bug 1721084)

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