Firefox Nightly for Developers

4.2
59.2K 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 — 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/

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.
Updated on
18 Feb 2025

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

4.2
55.1K reviews
Kshitij Chawla
6 December 2024
Somehow I always find the Nightly edition to be faster than the Stable edition. It's my favorite browser on phone and Laptop; no matter how many browser I use, Firefox always ends up being my primary browser. The one problem is that LinkedIn didn't work properly on Firefox, nightly or stable. The LinkedIn home page and profiles page aside, most other pages are overlaid with a tint and cannot be interacted with.
36 people found this review helpful
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Zetonna Zerion
3 February 2025
Started using Nightly because I wanted some extensions that aren't available on the basic Android Firefox app. Unfortunately even though all the add-ons worked, YouTube videos lag a lot (even without the add-ons). I'm really hoping this gets fixed, but I might have to switch to an alternative instead.
1 person found this review helpful
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Lunchbox15
11 December 2024
I love when developers of apps change the UI to make common actions that required 1 click to be hidden in submenus for no reason, only to be replaced by a question mark button that does not provide any benefit. They removed the forward navigation buttons entirely. If you go back accidentally, you will have absolutely no way to go forward again. These developers are absolutely braindead.
40 people found this review helpful
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