I can't test this, but I suppose it should be as easy as going to about:third-party and clicking a button next to a blocked entry. Probably preemptively learnin

I can't test this, but I suppose it should be as easy as going to about:third-party and clicking a button next to a blocked entry. Probably preemptively learning about how to reset this if Firefox won't start anymore. As long as it's all end user-controlled, I suppose the only issue is awareness that this feature exists and how it's controlled (this is the first time I've read about it). Also, it feels somewhat weird to have this function in an application rather than at the OS level (or as a independent process firewall application) - but I suppose this is fine.