Except where noted, everything here applies to both Firefox 132 and the Firefox 128.3 ESR.

Policies

• Single sign-on for Microsoft Entra accounts on macOS is now supported on the ESR. Unfortunately, the policy won't be available until Firefox 133 and Firefox ESR 128.4. You can use the pref (network.http.microsoft-entra-sso.enabled) to enable it.

Special Notes

Firefox 115 ESR is officially out of support for enterprises. Firefox 115 ESR users will be upgraded to the Firefox 128 ESR unless they are on Windows 7/8 or macOS 10.12/10.13/10.14.

We are extending Firefox 115 ESR support for Windows 7/8 and macOS 10.12/10.13/10.14 users until March 2025.

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