Specify extensions users must allow in order to navigate using InPrivate mode

This policy lets you specify a list of extension IDs that the user must explicitly allow to run in InPrivate mode in order to enable InPrivate browsing. If users don't allow all listed extensions to run in InPrivate mode, they're unable to navigate using InPrivate. If any extension in the list isn't installed, InPrivate navigation is blocked. This policy only applies when InPrivate mode is enabled. If InPrivate mode is disabled using the InPrivateModeAvailability policy, this policy has no effect. Example value: abcdefghijklmnopabcdefghijklmnop