Not perfect, but I was trying for hours to export well over 700 tabs and bookmarks from Zen browser to go back to chrome due to lack of support for work and school things in Zen and this got the job (mostly) done. So big shout out to you, I love you, you are a magical person, keep up the good work. (Although keeping zen spaces, pins, etc together would have made it a bit easier but hey I will take it.)

Awesome extension. It not only helps to save/restore/import/export tabs, but also be able to mange saved tab in a hierarchical way. Really like it.

Simply awesome.
I managed to filter all cr*p in my tab hell in matter of minutes, saved the meaningful stuff for next generations and started a new tab heaven.

it's good to use for me indeed

Nice！！

This extension saved my saved tabs from Tab Group after updating FF from v57

this add-on is a very good replacement for onetab. I like it won't delete the saved tab after I open it. It works more like a bookmark.
Few suggestions:
1. instead of a short cut, we need a button to save all tabs. I think you can put it on the end of tabzen's dropdown menu.

2. similarly, a button to open tab manager in dropdown menu.

3. a function of opening all saved tab in a folder

4. the user interface of tab manger is functional, but not particularly aesthetically appealing (in comparison, I think Tobi is quite good in terms of its UI).

Simple, but nicely-designed extension

gestor de abas bem completo e leve. Funciona também no Opera. É de longe o melhor que eu já testei. Recomendo!