i would like to give feedback / make a suggestion
currently each website i open in a container still has its own tab and they can be mixed in order and even though they are marked by color this can often get quite confusing.
i would like to suggest to give an option to limit each container to one tab. if i click this tab it could for example open a drop-down menu with all the websites i have opened in this container.
essentially this means: container=tab. (instead of the current: webpage=tab)
example pic of what it could look like:
alternatively i would suggest a tile-based design with thumbnails.
this might also help with a whole other array of problems that people have with the tab management and the loss of addons that used to handle such kind of problems and it would make the container-feature so much more userfriendly and easy to understand.
you would see that all those websites in the same container are grouped together in a tab making it completely intuitive to use.