Descargar o Firefox

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
Política de privacidade do Firefox
Get Mozilla VPN

Subscribe to the newsletter

Get security and privacy news and product updates from Mozilla to stay safe and informed on everything that makes the web a healthier place.