If not, I'd like to either make an RFE for that, or +1 to this RFE for optionally disabling realtime permission changes, because apparently I've just found a use case for it which is fairly important to me: I'm streaming Internet radio and will lose my session there if I lose the JS permission (which I don't want to make permanent), but I want to revoke other temporary permissions that are mostly OBJECTs and so won't show up as revokable on the menu; and in any case, it's impractical to go to a bunch of sites I've previously visited in order to revoke temporary permissions one by one.
(And no, I can't always use a different browser session for the streaming, because with my setup that necessarily means streaming inside a VM, but the VM's sound is sometimes both slowed down and pitched down, making good music sound awful
)