The ability to isolate some nasty sites like Facebook is great! As well as separating work stuff from personal one.

I miss the ability to make a container work *only* for specific domains, currently you can only force some domains to a container but not force others to escape it. The Facebook Container extension does this but the general Multi-Account Containers doesn't allow such fine-grained control.

Also, it'd be great to see the list of assigned domains per container, I can't find it right now.

There's a lot that could be improved but the add-on is great nonetheless.