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 this plugin, especially when it comes with the "Tab Tree View" plugin

Thought I lost all my sessions but it looks like they were just hidden.

Great extension, it works like it should.
Only one complain. Every time I start Firefox, the settings tab of the Tab Session Manager is opened.
Please fix this.
Thanks.

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!!!

If the add-on does not work correctly, try this:
Install the old version eg 1.8, then update to the newest one.