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://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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Ratings and reviews

This is getting ridiculous. It's been about a month of this terrible UI of the menu bar being forced on the bottom. I have already switched to regular Firefox, but I miss my custom addons! I keep checking back in hopes of this getting fixed, but it looks like they're digging their heels in. If this doesn't get fixed soon, I'm going to have to uninstall nightly and I really don't want to.

Several updates after the awful layout change and they still think it's an amazing idea to keep the 'Find In Page' search at the bottom with the new url bar, causing it to be hidden every .5 seconds when used. Edit: Another update and everything...is still broken. Including mobile on every site, so be prepared to click 'desktop mode' and zoom every time you open a tab! Good thing the url now covers up anything towards the bottom of the screen you might need to click.

The changes as of two days ago make the browser unusable. There's a new 'navbar', pinned to the bottom, impossible to move or change. Updated: they finally fixed the URI displaying just the domain, but the navbar change has still not been reverted. The navbar change has been pushed to main, with no way of disabling or moving, so I have switched my primary browser to Fennec, after using mozilla/netscape exclusively (and building by hand for custom distros) for almost 30 years. Thanks for ruining.