Firefox Nightly for Developers

Mozilla

About this app

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: https://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: https://github.com/mozilla-mobile/fenix/issues

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

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

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

Ratings and reviews

Absolutely love this browser, it's the best I've ever used, and transferring things from the web to my cell is extremely easy, no issues! It's customizable plus you can download and use any of the add-ons on your cell as if you were on your pc which is super convient! There's a lot of privacy features, as well as blocking trackers! Overall an amazing browser, download it; you will NOT BE DISAPPOINTED!!!!!!!5⭐'S

Ok so, this app is quite cool for allowing extensions to be added in, it is my main source to consume youtube videos without tons of ads and for that I praise it. However the 3 stars come from how horrible this app runs on a random basis, when I installed it for the first time it was slow but manageable however with newer updates many things started to break, full screen would crash the app, tabs would shut on their own and now all videos play at 10 fps, please stop messing up this app.

🤘Big props Mozilla for having Secure SNI working right out if the box!! Edit: not working now:( Seems just as fast as stable, although I've noticed large web PDFs (>10mb) render slower and also searching them is buggy vs my experience on stable. Current build is 127.0a1... I'll keep updating and testing until I find a build I like, then probably will be too scarred to update for a year 🤣🤣🤣. PS I know peeps have requested a BOOKMARK folder/location search bar when adding a new bookmark!!!! 📚