Your Firefox may start to have problems on January 14, 2025

Update now for the best browsing experience. A root certificate will expire, causing some preferences and other features to stop working. Read more about this change

Update now

Firefox is no longer supported on Windows 8.1 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Download Firefox ESR 64-bit

Download Firefox ESR 32-bit

Download a different build

Firefox is no longer supported on macOS 10.14 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Download Firefox ESR
Firefox Privacy Notice

Update now

Usually takes 2–3 minutes