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.

101.0beta Firefox Beta

May 3, 2022

Version 101.0beta, first offered to Beta channel users on May 3, 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 supports the prefers-contrast media query, which allows sites to detect if the user has requested that web content is presented with a higher (or lower) contrast.

  • Firefox for Android now supports using the magnifier on Android 9+ for positioning the cursor in forms on webpages.

Fixed

  • Fix for MFSA 2022-19 included in Firefox Desktop and DevEdition 101.0b9 builds and newer.

Developer

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