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.

98.0beta Firefox Beta

February 8, 2022

Version 98.0beta, first offered to Beta channel users on February 8, 2022

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.

New

  • Firefox now has a new optimized download flow. Instead of prompting every time, files will now download automatically. They can still be opened from the downloads panel with just one click. More information

  • You can now delete downloaded files directly from the download panel and other download views using the context menu.

Changed

  • The use of webRequest used to cause addons to start early during Firefox startup. This has changed to only use webRequest blocking calls. non-blocking calls no longer cause an early startup for addons.

Developer

  • Developer Information

  • The Compatibility sidebar panel in the DevTools Inspector already available on pre-release channels will become available on the release channel in version 98 . It provides compatibility warnings for the CSS properties used on the selected element, as well as for the overall page.

    Developers may use it to detect web-compatibility issues early, without having to test in each browser. All compatibility data are pulled from MDN.

Web Platform

  • The <dialog> HTML element already available on pre-release channels will become available on the release channel in version 98.

Get the most recent version

All Firefox Beta downloads