Firefox Release

December 22, 2020

Version 84.0.1, first offered to Release channel users on December 22, 2020


  • Fixed problems loading secure websites and crashes for users with certain third-party PKCS11 modules and smartcards installed (bug 1682881).

  • Fixed slower than expected performance and flickering on Canvas elements for some Windows users (bug 1683116).

  • Fixed a bug causing some Unity JS games to not load on Apple Silicon devices due to improper detection of the OS version (bug 1680516).

  • Fixed crashes caused by various third-party antivirus software.

All Firefox downloads