Rated 5 out of 5 stars

I have been a supporter of Firefox from the early times...
I was looking to such an application as session Manager, and fond it outstanding....
Times are changing and Firefox is becoming some kind of MS bad program which forces users stupid habits...
Give me back Session Manager...
@Firefox_programmers... get back on tracks, nice smooth and usable programming please... that brings people services... instead of hours release that remove outstanding addons...

I need to reinstall the V56...

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