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
Firefox is no longer supported on macOS 10.14 and below.
Deuvia o navegatô ch'o rispêta a teu privacy in aotomatico. In sce Windows, macOS ò Linux.
Take speed, privacy and peace of mind with you. On Android and iOS.
Simply private mobile browsing.
Your right to security and privacy on the internet is fundamental – never optional.
Lezi e neuve fonçionalitæ de Firefox e i conseggi pe sta a-o seguo quande ti ê in linea.
View all Firefox Browsers
See if your personal info has been leaked online, and sign up for future breach alerts.
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The non-profit behind Firefox is fighting for a healthy internet for all.
Join the fight for a healthy internet.
Work for a mission-driven organization that builds purpose-driven products.
More About Mozilla
Get together in virtual reality with this online social space.
Firefox, built just for developers.
Resources for developers, by developers.
Donate your voice to help make voice recognition open to everyone.