91.2.0
Firefox ESR

October 5, 2021

Version 91.2.0, first offered to ESR channel users on October 5, 2021

Fixed

unresolved

  • For users on macOS Monterey, enabling mouse cursor coloring in the system accessibility preferences can lead to excessive memory usage in Firefox. This problem will be fixed in Firefox 94 due for release on November 2.

All Firefox ESR downloads