I've been using the Firefox Multi-Account Containers plug-in for years and have been very happy with it.

The reason I'm giving it 4 stars instead of 5 is because of a recent issue I'm having with the "Open this site in your assigned Container?" message that pops up every time I go to an awsapps.com start page. My issue is that I have multiple AWS accounts to work within and I use the containers to allow multiple simultaneous logins.

I don't want this dialog. I haven't found a way to turn it off. I haven't found a way to remove the default container setting for this site. It pops up when I go to the start page and again when I go to the next page on AWS login.

Please give me a way to manage which sites default to which container beyond the non-functional "Remember my decision for this site" checkbox.

I want to get a list of sites per container and be able to remove them.