Easier, passwordless security: Added support for Windows Hello on Windows 10, allowing you to use your face, fingerprint, or external security keys for website authentication
Enabled AV1 support on 32-bit Windows and MacOS. Firefox now supports the next-generation, royalty-free video compression technology called AV1. Read about Mozilla’s contribution to this new open standard.
The Dark and Light Firefox themes now override the system setting for title bar accent color on Windows 10
Linux users: Resolved an issue that caused Firefox to freeze when downloading files