Firefox for Enterprise 143 - Release notes

Revision Information
  • Revision id: 305128
  • Created:
  • Creator: Mike Kaply
  • Comment: Firefox 143 enterprise release notes.
  • Reviewed: Yes
  • Reviewed:
  • Reviewed by: plwt
  • Is approved? Yes
  • Is current revision? Yes
  • Ready for localization: Yes
  • Readied for localization:
  • Readied for localization by: plwt
Revision Source
Revision Content

Except where noted, everything here applies only to Firefox 143 and the Firefox 140.3 ESR. Firefox 140 is the next ESR so, going forward, no enterprise changes will be backported to Firefox 128 ESR.

Table of Contents

Special Notes

Firefox 128 ESR goes out of support with this release. Firefox 128 ESR users will be upgraded to the Firefox 140 ESR.

We are extending Firefox 115 ESR support for Windows 7/8 and macOS 10.12/10.13/10.14 users until March 2026.

If you need to prevent upgrades for any reason, you can use the AppUpdatePin policy.