I seriously wanted to give this extension 10 stars, because it really changed the way I use the browser. However, I'm uninstalling it, because your syncing is shit, and I cannot change my site list. I want to change the order of the containers in the list, and for some reason, the list of all my "A" container sites (in which it should open by default) moved to "C" container after syncing, and there's no way I can remove it. Even when I click in the trash bin icons to delete them, it appears again when I reopen that menu. Before the update this extension was seriously amazing, but unfortunately is not usable anymore for me. Hope you let me change the order of the containers in the future as well as fixing your syncing.