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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.

120.0.1 Firefox Release

November 30, 2023

Version 120.0.1, first offered to Release channel users on November 30, 2023

Fixed

  • Fixed a bug that was causing persistent startup slowdowns. (bug 1867095)

  • Fixed an issue that was causing 100% CPU usage on sites such as Google Maps. (bug 1866409)

  • Fixed an issue that was causing YouTube videos to show a green screen when hardware acceleration was enabled. (bug 1865928)

  • Fixed an issue where the status bar was still visible when viewing fullscreen video. (bug 1853896)

  • Fixed a startup crash affecting Linux users on some aarch64 systems with page sizes other than 4KB. (bug 1866025)

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