Firefox Nightly for Developers

Nightly is built for testers. Help us make Firefox the best browser it can be.

Firefox Nightly for Developers

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App stats

By: Mozilla

Users: 2,584,930

5.64K

Rating: 4.25

(57,924)

110 new ratings

Version: 135.0a1 (Last updated: 2024-12-02)

Creation date: 2019-06-27

Email: fi*****@mozilla.com

URLs: Website ,Privacy policy

Permissions

Location: approximate location (network-based), precise location (GPS and network-based)

Photos/Media/Files: read the contents of your USB storage, modify or delete the contents of your USB storage

Storage: read the contents of your USB storage, modify or delete the contents of your USB storage

Camera: take pictures and videos

Microphone: record audio

Other:

download files without notification
receive data from Internet
view network connections
full network access
change your audio settings
run at startup
control vibration
prevent device from sleeping
install shortcuts

Ranking

# 32,896 ▼ 28

Other rankings

#4 in firefox keyword 84

#6 in developer tools keyword 42

#9 in modheader keyword 92 ▲ 2

#11 in manganum keyword 77 ▲ 1

#19 in developer keyword 44 ▼ 12

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Other platforms

Not available on Chrome

Not available on Firefox

Not available on Edge

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App summary

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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/

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User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Google Play Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.

Pros

Great for testing custom settings and features
Add-on support is appreciated
Syncs seamlessly between devices
Customizable via about:config and secret settings
Access to .onion sites with proper configuration

Cons

Significant bugs and app instability after updates
Unwanted forced layout changes that cannot be reverted
Navigation bar moved to the bottom without user consent
Website notifications and touch inputs malfunctioning
Frequent UI tweaks breaking established user workflows

Most mentioned

Bottom navigation bar issues
Forced changes to the UI layout
Problems with navigation and address bar functionality
Bugs causing crashes and glitches
Need for customization options and user control

User reviews

:( Last update broke it. I couldn't open it at all. I uninstalled and side loaded an Oct 28 apk. I will update in a week and see how that goes The controls on the bottom separate from search placement grew on me. Either way is fine with me. I think there may be an issue with the way Firefox interacts with the phone's native "back" ◀ functionality. It's skipping a step. I noticed on YouTube's search.

Velma Velvet, 2024-11-14

I like the add on support and user interface, but the app has a few longstanding bugs. Website notifications aren't clickable, when the ui auto hides, the touch input to some websites is offset and Taps register where they are not supposed to, and the tab list will scroll to the top itself. Sync works very nicely for seamless browsing between devices. But it's cumbersome to have to fully open the browser when a link is shared to it and I only want to send the link to another device via Send.

Chee- “Nickname” Rex, 2024-11-13

Got this on my phone so I could access the about:config page. Great browser for testing custom settings and working with things like VPNs, proxies, and security features. It can even access .onion sites with proper configuration. Really amazing browser, but stick with Firefox standard for everyday browsing, this may have a few bugs and/or glitches unless you know exactly what you're getting yourself into.