Version 109.0beta, first offered to Beta channel users on December 13, 2022
Firefox Beta gets updated 3 times a week and as a consequence, the release notes for the Beta 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.
In addition to these release notes, you can follow ongoing development via our @FirefoxBeta Twitter account.
Firefox builds in Spanish from Spain (es-ES) and Spanish from Argentina (es-AR) now come with a built-in dictionary that can be used with the Firefox spellchecker.
On macOS, Ctrl or Cmd + trackpad or mouse wheel now scrolls the page instead of zooming. This avoids accidental zooming and matches Safari's and Chrome's behavior. If you would like to restore the previous zooming behavior, set the mousewheel.with_control.action and mousewheel.with_meta.action prefs to "3" in about:config.