Allowed Sites (Session Only)

Supported on: Firefox 79 or later, Firefox 78.1 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\Cookies\AllowSession

Description

If this policy is enabled, cookies are allowed for the origins indicated, but removed at the end of the session. If a top level domain is specified (http://example.org), cookies are allowed for all subdomains as well. If this policy is disabled or not configured, the default cookie policy is followed.