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Firefox Browser

Get the latest. Automatic privacy is here. Download Firefox to block over 2,000 trackers.

Firefox Beta

Test about-to-be released features in the most stable pre-release build.

Firefox Developer Edition

Build, test, scale and more with the only browser built just for developers.

Firefox Developer Edition — English (US)

Your system may not meet the requirements for Firefox, but you can try one of these versions:

Firefox Developer Edition — English (US)

Firefox Developer Edition 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 Developer Edition 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
Firefox Nightly

Peek at our next generation web browser, and help us make it the best browser it can be.

Firefox Nightly — English (US)

Your system may not meet the requirements for Firefox, but you can try one of these versions:

Firefox Nightly — English (US)

Firefox Nightly 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 Nightly 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

Need help installing?

If you still need help installing, read the tutorial in our Support section.