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.


  • 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.


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

All Firefox Beta downloads