So disappointed that my containers (except the default ones) just randomly disappeared today. It could be because I clicked a button in User-Agent Switcher & Manager which said something along the lines of - use/connect Multi-Account Containers - but now I'm so mad because I have to recreate the containers. My rating (before this incident) is actually 5-stars. They've also made it easier to "Always open this site in..." a container which makes setting up more convenient.