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://bugzilla.mozilla.org/enter_bug.cgi?product=Fenix

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/

BILLIONAIRE FREE FOR 20+ YEARS
The Firefox browser was created in 2004 by Mozilla as a faster, more private browser with more customizable features than web browsers like Internet Explorer. Today, we are still not-for-profit, still not owned by any billionaires and still working to make the internet — and the time you spend on it — better. To learn more about Mozilla, please go to https://www.mozilla.org.

LEARN MORE
- Terms of Use: https://www.mozilla.org/about/legal/terms/firefox/
- Privacy Notice: https://www.mozilla.org/privacy/firefox
- Latest news: https://blog.mozilla.org

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Ratings and reviews

I'm not entirely sure what happened with the design of the browser since the last update I had installed, but moving all the settings to a full-screen pop-up was not the right move. I used the quick-access navigation buttons often, and the small desktop-like pop-up for settings and extensions and the like from the corner were great. This feels like Mozilla are regressing in design. I chose Firefox because it's simple, customizable, and respects me as a consumer. I now question that choice.

[This review was written for Firefox Preview; when it was removed, it automatically became Firefox Nightly] It really is faster. And has a dark theme. And better usability / ui design once you get used to it. Although now I miss being able to reorder open tabs (e.g. by drag and drop). Bookmarks aren't saved to the 'mobile bookmarks' folder anymore which is pleasant for syncing them with the desktop browser. However, I'd like to be able to set a default folder to which bookmarks are saved.

Looks very promising as a replacement for Google Chrome. I've been using the app for some time now and do not see any lack of features, which would result in a worse experience than the standard Android browser. This was always the problem with previous versions of Firefox for Mobile - at least for me. Bonus: If you're using Firefox on other devices, signing in with your Firefox account makes Bookmark- and Tab-sharing easy.