Pin updates to a specific version
Supported on: Firefox 102 or later
Registry
HKLM
Software\Policies\Mozilla\Firefox HKCU
Software\Policies\Mozilla\Firefox Options
AppUpdatePin text Description
If this policy is enabled, you can specify a Firefox version as xx. or xx.xx. and Firefox will not be updated beyond that major or minor version. If this policy is disabled or not configured, Firefox will update normally.