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Firefox Nightly icon

8.2 21 Reviews

128.0a1 by Mozilla

May 22, 2024

About Firefox Nightly


Firefox Nightly - An experimental web browser. Mainly for Developers.

TO BE WARNED: Firefox Nightly Can be UNSTABLE. You may fail to start or run the app.

Firefox Nightly is an experimental browser that provides users with the latest innovations of Firefox. It is updated on a daily basis, allowing users to experience the newest features and provide feedback on their performance to help the developing team to create an even safer, faster and more private internet environment for advanced users. However, it is important to note that Firefox Nightly is an unstable environment and may contain bugs.

If you encounter any bugs while using Firefox Nightly, you can go to https://github.com/mozilla-mobile/fenix/issues and report them to help improve the platform.

Firefox Nightly is only designed for developers and early adopters. It is not recommended for users who require a stable environment or who are not comfortable with potential bugs.

If you are interested in using Firefox Nightly, check the links given provided by Mozilla to help shape a better Firefox Nightly surfing environment.


To learn more about Firefox Nightly, please go to the following web pages:

Privacy Notice: https://www.mozilla.org/privacy/firefox/

Permission: https://mzl.la/Permissions

System Requirements: https://www.mozilla.org/firefox/mobile/platforms/

What's New in the Latest Version 128.0a1

Last updated on May 22, 2024

Minor bug fixes and improvements. Install or update to the newest version to check it out!

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Additional APP Information

Latest Version

Request Firefox Nightly Update 128.0a1

Uploaded by

Vinicius Sousa Pereira

Requires Android

Android 5.0+

Available on

Get Firefox Nightly on Google Play

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Firefox Nightly Articles

Firefox Nightly FAQ

What is Firefox Nightly for Developers?

Firefox Nightly for Developers is a pre-release version of the popular web browser designed specifically for developers to test new features and provide feedback.

How do I install Firefox Nightly on my computer?

Visit Mozilla's website, download the appropriate installer based on your operating system, and follow the prompts to complete the installation.

Can I use extensions with Firefox Nightly?

Yes, you can add any extension that works with regular versions of Firefox but keep in mind they may not be fully compatible or stable yet due to it being a pre-release build.

Should I use Firefox nightly?

If you are willing to sacrifice stability for the chance to try out new features, then yes, you should use Firefox Nightly. However, it is important to remember that it may have issues due to its instability.

What is the difference between Firefox Nightly and Firefox Quantum?

"Quantum" is the current stable version for most people, while "Nightly" is an unstable test version meant only for testers and Firefox developers. Nightly may have random new issues every day.

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Firefox Nightly Screenshots

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