Blocked websites

If this policy is enabled, you can specify match patterns that indicate sites to be blocked. The match patterns are documented at https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Match_patterns. Only http/https addresses are supported at the moment. There is a 1000 entry limit.

If this policy is disabled or not configured, no websites are blocked.

Supported on: Firefox 60 or later, Firefox 60 ESR or later



Registry HiveHKEY_LOCAL_MACHINE or HKEY_CURRENT_USER
Registry PathSoftware\Policies\Mozilla\Firefox\WebsiteFilter\Block
Value Name{number}
Value TypeREG_SZ
Default Value

firefox.admx

Administrative Templates (Computers)

Administrative Templates (Users)