Block Add-ons Manager

If this policy is enabled, the user cannot access the Add-ons Manager or about:addons.

If this policy is disabled or not configured, the user can access the Add-ons Manager and about:addons.

Supported on: Firefox 60 or later, Firefox 60 ESR or later
Registry HiveHKEY_LOCAL_MACHINE or HKEY_CURRENT_USER
Registry PathSoftware\Policies\Mozilla\Firefox
Value NameBlockAboutAddons
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

firefox.admx

Administrative Templates (Computers)

Administrative Templates (Users)