Rated 5 out of 5 stars

le Firefox user 8e704b ar Iúil 1, 2017 · buan-nasc

I don't know what to say other than this add-on is indispensable! Since I automatically clear all browser data upon closing Firefox, Session Manager has saved me from so much wasted effort of having to reopen 30+ tabs after crashes. It even works with the Tab Groups extension!