Rated 5 out of 5 stars

le Firefox user 7b1518 ar Samh. 22, 2017 · buan-nasc

I have been using Session Manager for years but only now with FF57 breaking everything I realize how utterly dependent on it I've become. To me, this is the most essential add-on of them all! I sincerely hope that Mozilla fixes their API asap and that Session Manager will be supported again.