I'm not sure why this has such a low rating. Sure, it isn't as good as Session Manager was in the old Firefox Add-Ons, but it's the best replacement there is and it's improving all the time.

Perfect add-on. Save your sessions as you want.

Einfach klasse!!

Awesome addon! FireFox ver. 57 came out only a month after I discovered the incompatible Session Manager addon, and it was disappointing to stop using it right after finding out how useful it is. This addon is a WIP Session Manager replacement for FF 57, and so-far it works great. The best part is that I can directly import the sessions from SM I had saved, which is super convenient. Other people seem to be having some problems and it doesn't have all the features that SM had, but it works fine for me.

I love it! Sometimes the 'Restore previous section' from Firefox worked, some didn't. So I guess this is the extension that I'd use most in the future ;)

Весьма даже удобное расширения. Из того что я перепробывал для Мозиллы - лучшее! Главное, что есть импорт и экспорт сессий.

Very Useful!!!

saved my ass more times than i can count!

Ich finde das Tool sehr gut gelungen und ein guter Ersatz für den "SitzungsManager"

Es fehlt die Möglichkeit den aktuellen Stand der Tabs unter dem beim Laden benutzten Namen zu speichern.

The only good session manager since FF killed the 1000s of great addons, would like the see an optional feature for being able to just one-click save session and close ff and resume session as soon as ff is restarted

first of all reat job!
It is possible in the future to implement the option Is it possible to automatically delete sessions with more than x time (defined by the user)?
or simply define a maximum session number that already exists, but when that number is filled, will it save over the oldest session?
thanks and keep the good work.

Wonderfully implemented & well thought of, love the way it organizes my tabs and can always look up way back. Thanks, recommended by Steve Gibson.

Amazing ! Loved it

Straight forward and clean interface. Works properly for me. I see other folks have said it's not working properly for them - but it is working properly for me. Perhaps the developer fixed some issues? (p.s. I am not affiliated with the developer in any way)