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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.

100.0.1
Firefox Release

May 16, 2022

Version 100.0.1, first offered to Release channel users on May 16, 2022

Fixed

  • Fixed an issue with subtitles in Picture-in-Picture mode while using Netflix (bug 1768818)

  • Fixed an issue where some commands were unavailable in the Picture-in-Picture window (bug 1768201)

Changed

  • Firefox's security sandbox now blocks access to the Win32k APIs for Content Processes on Windows (bug 1767999)

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