Blocked Sites

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

Registry

HKLM Software\Policies\Mozilla\Firefox

HKCU Software\Policies\Mozilla\Firefox

Options

List (registry values) list - list under Software\Policies\Mozilla\Firefox\FlashPlugin\Block

Description

If this policy is enabled, Flash is blocked for the origins indicated. If a top level domain is specified (http://example.org), Flash is blocked from all subdomains as well. If this policy is disabled or not configured, the default Flash policy is followed.