Warning: Nightly is an unstable testing and development platform. By default, Firefox Nightly automatically sends data to Mozilla — and sometimes our partners — to help us handle problems and try ideas. Learn what is shared: www.mozilla.org/en-US/privacy/firefox/#pre-release

Firefox Nightly gets updated every day and is designed to showcase the more experimental builds of Firefox. The Nightly channel allows users to experience the newest Firefox innovations in an unstable environment and provide feedback on features and performance to help determine what makes the final release.

Found a bug? Report it at: github.com/mozilla-mobile/fenix/issues

Want to know more about the permissions Firefox requests?: mzl.la/Permissions

See our list of supported devices and latest minimum system requirements at: www.mozilla.org/firefox/mobile/platforms/

Mozilla marketing: In order to understand the performance of certain Mozilla marketing campaigns, Firefox sends data, including a Google advertising ID, IP address, timestamp, country, language/locale, operating system, app version, to our third party vendor. Learn more by reading our Privacy Notice here: www.mozilla.org/privacy/firefox/

Take a browse on the wild side. Be among the first to explore future releases.

Variant
Arch
Version
DPI
(x86)
Latest: 1.0.1914 beta on April 4, 2019
All versions

Version:102.0a1

Uploaded:May 27, 2022 at 11:03AM UTC

File size:77.59 MB

Downloads:2,314

Version:101.0a1

Uploaded:May 2, 2022 at 9:57PM UTC

File size:77.2 MB

Downloads:2,885

Version:100.0a1

Uploaded:April 5, 2022 at 3:05PM UTC

File size:79.82 MB

Downloads:2,197

Version:99.0a1

Uploaded:March 8, 2022 at 6:28PM UTC

File size:75.78 MB

Downloads:2,340

Version:98.0a1

Uploaded:February 8, 2022 at 6:11PM UTC

File size:73.42 MB

Downloads:3,095

Version:97.0a1

Uploaded:January 11, 2022 at 7:03PM UTC

File size:73.11 MB

Downloads:4,372

Version:96.0a1

Uploaded:December 9, 2021 at 8:33AM UTC

File size:77.56 MB

Downloads:4,329

Version:95.0a1

Uploaded:November 2, 2021 at 8:23PM UTC

File size:72.03 MB

Downloads:3,552

Version:94.0a1

Uploaded:October 5, 2021 at 7:49PM UTC

File size:71.25 MB

Downloads:3,605

Version:93.0a1

Uploaded:September 7, 2021 at 8:10PM UTC

File size:71.06 MB

Downloads:3,620