Rated 5 out of 5 stars

per Firefox user 0d381d el feb. 3, 2018 ·

Definitely the best browsing session manager I have ever had.
I switched back to older FF versions just to keep my sessions.
Well worth updating for compatibility with new FF versions.
Would be happy to pay for it.

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