Version 120.0a1, first offered to Nightly channel users on September 25, 2023
Firefox Nightly gets updated every day and as a consequence, the release notes for the Nightly channel are updated continuously to reflect features that have reached sufficient maturity to benefit from community feedback and bug reports.
Warning: Features listed here may or may not make a final release of Firefox.
You can interact with other Firefox Nightly users and give your feedback to Mozilla staff in the Nightly Matrix room on chat.mozilla.org.
Starting with Firefox 118, Nightly now supports UI setting that enables the user to opt-in into GPC, a privacy signal that tells the websites that the user doesn’t want to be tracked and doesn’t want their data to be sold.