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Firefox Beta and Developer Edition
Release Notes

Release Notes tell you what’s new in Firefox. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the system requirements of this release.

108.0beta Firefox Beta

November 15, 2022

Version 108.0beta, first offered to Beta channel users on November 15, 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.


  • Import maps, which allow web pages to control the behavior of JavaScript imports, are now enabled by default.

  • Firefox now supports properly color correcting images tagged with ICCv4 profiles.

  • The shift+esc keyboard shortcut now opens the Process Manager, offering a way to quickly identify processes that are using too much resources.

  • Processes used for background tabs now use efficiency mode on Windows 11 to limit resource use.


  • The bookmarks toolbar's default "Only show on New Tab" state now also works correctly for blank new tabs. As before, you can change the bookmark toolbar's behavior using the toolbar context menu.

  • Improved handling of non-ASCII characters when saving and printing PDF forms.


  • Firefox now supports the WebMIDI API along with a new experimental mechanism for controlling access to dangerous capabilities.

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