Auto Launch Protocols From Origins (JSON on one line)

Supported on: Firefox 81 or later, Firefox 78.3 ESR or later

Registry

HKLM Software\Policies\Mozilla\Firefox

HKCU Software\Policies\Mozilla\Firefox

Options

AutoLaunchProtocolsFromOrigins text

Description

If this policy is enabled, you can define a list of external protocols that can be used from listed origins without prompting the user. If this policy is disabled or not configured, any site that invokes an external protocol will ask the user for permission. For detailed information on creating the policy, see https://github.com/mozilla/policy-templates/blob/master/README.md#autolaunchprotocolsfromorigins.