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.

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.

saved my ass more times than i can count!

Firstly, thank you for going to the effort of making this add-on.

I have just one request, and here it is as a User Story:

As a Firefox user,
I need to have new sessions that are opened by clicking a link *outside* Firefox restore tabs as expected AND add the tab just opened by click the link,
so that the page I wish to see by licking that link is now open, and I don't have to waste time going back and clicking the link a second time.

Acceptance Criteria:
GIven Firefox is closed,
when I click on a link in, say, Outlook,
then Firefox opens,
and tabs are restored automatically according to how I've set up TSM,
and the new tab is added and has the focus.

I'm sure you're sick of comparisons to the old Session Manager, but this describes its normal behavior.

Good luck, I hope you can manage to add this feature. It'll be much appreciated.