It's fine but I would upgdade it with there things:
-I want to change the order of my containers in the menu.
-I want to open a new tab and identify it with the current container.
-I would love more icons.
-From history menu or bookmark, I want to decide in what particular container I want them to open. They always open in a no-container tabs.

Make my live a lot easier!

Does the job but as the description says, unlike FB container, doesn't prevent you from opening links in the wrong container and this kind of defeats its purpose. Additionally, after I carefully created a number of containers, it mysteriously forgot all of them and reset itself to its initial state. Not cool.