First of all, when clicking the multi-account firefox button, you are greeted with a "You've opened 100 container tabs" which doesn't go away. Then, to leave a review, the default behavior is to open the review site in no container. To log in using my personal google account i have to open the tab in the personal container. After a successful login, the tab does not redirect me to the previous review page. Pressing again the link to review says i am not signed in (default no container). Essentially containers are a half baked concept that breaks when using auth flows with identity providers and with no options to, open all links while in a container in the same container. This would have solved many issues.