This add-on alone is a reason to use Firefox

When it works, this is incredibly useful. Unfortunately it likes to destroy itself and spam dozens of copies of each container. When it does this, it will "helpfully" sync all these new copies to other devices as well. I've given up on trying to figure out what causes this but I'm glad to see I'm not the only one reporting the issue.

There's also a critical UI flaw: when you "unlock a badge", such as opening a container in a new tab, or opening your 1000th tab, or whatever, it simply stops working. There's no notification that it expects you to open up the extension and view your "badge"; it just simply stops opening sites in containers.

It's infuriating that such a useful extension can be hamstrung by such mind-bogglingly sloppy development.

Works amazingly! School and work Google Accounts are known to log and flag searches, which is why I use containers. I also like that you can use keyboard shortcuts

Really usefull extension, I use it every day to separate the activitites I do on internet. The only feature I really miss here is containers ordering. Now I have 8 containers and they seem to be in different order every day, due to synchronization between computers. When I open new tab in specific container, I always have to search, where it is today ...