Very useful extension, with a few shortcomings:
- no integration with the Third-party Cookie setting -- if I only allow 3rd party cookies from sites I've already visited, ideally this is localized per container (so if I have visited SocialNetworkA in its own container, I don't get its cookie when visiting SensitiveSiteB in a different container)
- not being able to reorder containers -- as I create more and more containers, it's getting to the point where I want them sorted alphabetically, but that's not possible unless I created them in the right order
- container icons a bit limited - would be great to be able to use a specified domain's favicon as the container logo