Firefox Nightly

@firefoxnightly
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Latest Firefox for Desktop development, live from Bugzilla!
Downloadhttps://firefox.com/nightly
Firefox NightlyFeb 3

AI Controls are available in Firefox Nightly preferences!

Documentation: https://support.mozilla.org/kb/firefox-ai-controls

If you find a bug, please report it on Bugzilla via this link: https://mzl.la/AIControlsFileBug

Thanks!

Firefox NightlySep 16, 2025
Mozilla - Ask a Fox event
https://community.mozilla.org/campaigns/ask-a-fox/
Firefox NightlyJul 6, 2025
The Text Fragments creation UI was just activated in Firefox Nightly allowing you to share/reference a link anchor to any text snippet in a page https://bugzilla.mozilla.org/1970641
Firefox NightlyJun 16, 2025
You can now drag a tab to your pinned tabs tray to pin it, or drag it out to unpin it.
https://bugzilla.mozilla.org/1944907
Firefox NightlyFeb 27, 2025

The Network panel now allows overriding network request responses with local files.

https://bugzilla.mozilla.org/1849920

1849920 - Add support network response override for any request in the netmonitor

RESOLVED (jdescottes) in DevTools - Netmonitor. Last updated 2025-02-20.

Firefox NightlyFeb 20, 2025
You can now switch to vertical tabs from your tabs context menu
Firefox NightlyDec 23, 2024
Tab groups are now enabled by default in Firefox Nightly 135
https://bugzilla.mozilla.org/1938187
1938187 - Enable tab groups in nightly

RESOLVED (dao+bmo) in Firefox - Tabbed Browser. Last updated 2024-12-21.