This looks similar to profile switcher / People menu in Chrome [1]. Chrome's implementation restricts the entire window to belonging to one person, but I use s

This looks similar to profile switcher / People menu in Chrome [1]. Chrome's implementation restricts the entire window to belonging to one person, but I use separate windows for this use case already anyway. I'm not sure that I see the use case for the in-between abstraction. Can you selectively enable an add-on / extension for only one container but not others in Firefox with this extension? [1]: https://support.google.com/chrome/answer/2364824 https://support.google.com/chrome/answer/2364824