Just one thing missing: I like to keep multi-account containers out of my toolbar, so I don't have it filled with tons of add ons. I chose to remove, among others, multi-account containers, because I can access all of it's options without having to click the icon on the toolbar. That is, with the apparent exception of the option to limit a container to it's designated sites. I could be wrong, and the option is just hidden somewhere and I haven't found it, but I don't believe that's the case. When I go to the ''Manage Containers'' page and click on a container, it shows me two things I can do with each container: preferences and remove. When I click preferences, all that it lets me do is change the container's name, icon and icon's color. Also, a feature that isn't available at all and I would like it very much if it was implemented, is the ability to sort the containers. Either by choosing different ways to organize them, such as by alphabetical order, or by being able to drag them to another slot.