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/

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Ratings and reviews

Downloaded over Firefox for Android to use as my default browser because of its access to about:config. However, I toggled off the Reader View button in a:c, as I always do because I hate it, but the button won't get off of my url bar. Requesting this be looked into so that I can comfortably use this as my default browser.

I'd been stubbornly sticking to v68.11 ever since the redesign, but finally decided to give the latest version another try... it's okay, mostly. The password manager is much better, and I haven't run into any pages that just don't work...though there are some where elements are sized strangely. My only major annoyance at the moment is how frequently it reloads tabs; switching windows and coming back causes it to refresh, rather than just staying loaded.

Recently Firefox Nightly had a few amazing updates. Aside from supporting a wide range of extensions (even Tampermoneky, so you can use your userscripts from the desktop version), it now is able to open PDFs within the browser (just like Safari on iOS) and it's the first Android browser (that I know about) which can do that. It was the only feature that I used to like in Safari and it was such a bummer that it wasn't available on Android. Thanks Mozilla! Keep it up.