Firefox Nightly for Developers

4.5
54.8K reviews
1M+
Downloads
Content rating
Everyone
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About this app

Warning: Nightly is an unstable testing and development platform. By default, Firefox Nightly automatically sends data to Mozilla ā€” and sometimes our partners ā€” 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/

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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Updated on
Jun 7, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.5
51.3K reviews
heh heh
May 23, 2024
Two stars docked, for the experience of the second most recent update, relative to the update of this review, crashing on launch. The fix wasn't pushed until nearly a week later. This demonstrates how important it is to have backup options setup for such contingencies, ideally prior to such a thing occurring. Because when this appcrash situation was occurring, I was unable to leverage the in-app sync services, because I had not set it up, and because it was appcrashing, I could not do so.
9 people found this review helpful
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Kyle Cieslak
May 20, 2024
As of May 2024, this browser app crashes at startup EVERY TIME! I just installed this at 9:00 Pacific time, for the first time. I installed this on a Galaxy A13, that is 23 months old. I was hoping to find a good non-Chromium browser engine, and I was recommended Firefox Nightly. Gecko is pretty much the only rendering engine that works, outside of Chromium. Standard Firefox just didn't have the features I was looking for. But, this browser sucks. It crashes EVERY TIME ON STARTUP! Don't install!
7 people found this review helpful
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Nikhil Shringarpurey
May 31, 2024
There are still issues on Galaxy fold devices where the nasbar at the bottom of the screen covers the bottom part of the pop-up menu. In addition when the phone automatically changes from dark mode on to off based on a schedule, the icons in the menu do not update properly making them invisible. The only way to force them to update is by manually toggling dark mode on and off again.
4 people found this review helpful
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