Define domains allowed to access Google Workspace
Supported on: Firefox 89 or later, Firefox 78.11 ESR or later
Registry
HKLM
Software\Policies\Mozilla\Firefox HKCU
Software\Policies\Mozilla\Firefox Options
AllowedDomainsForApps text Description
If this policy is enabled, the user can only access Google Workspace for the specified domains (separated by a comma). To allow access to Gmail, you can add consumer_accounts. If this policy is disabled or not configured, the user can access any account on Google Workspace as well as Gmail.