Rated 5 out of 5 stars

I've been using this extension for years and it has become absolutely essential to the point that is one of the main reasons for using Firefox as my main web browser.

the versatility that FF had with Session Manager + Switch container and other extensions is not achieved with another web browser, which was lost from the minute they stopped making compatible Session mamager forcing me to try to find a way to replace it ...

This review is for a previous version of the add-on (0.8.1.13).