Mozilla sent Firefox Version 100.0.1 to the release channel today.
Fixed- Fixed an issue with subtitles in Picture-in-Picture mode while using Netflix (bug 1768818 (https://www.blogger.com/blog/post/edit/30199100/9065443157047053176))
- Fixed an issue where some commands were unavailable in the Picture-in-Picture window (bug 1768201 (https://www.blogger.com/blog/post/edit/30199100/9065443157047053176))
Changed- Firefox's security sandbox now blocks access to the Win32k APIs for Content Processes on Windows (bug 1767999 (https://www.blogger.com/blog/post/edit/30199100/9065443157047053176))
Release Notes (https://www.mozilla.org/en-US/firefox/100.0.1/releasenotes/)