So far so good! Completly changes expirience for the better! Thanks

Great product and really happy with the functionality. Just changing to a new PC - and trying to get my hundreds of tabs moved across. Simply copying the backup file doesn' seem to work. Is there a method?

Muito bom, resolveu os meus problemas de muitas abas abertas

Perfect !

Best extension ever. Clean af.

gppds

It's a must need, works perfect, good job!

Спасибо за хороший инструмент.
Почему-то в настройках группы не получается настроить захват регуляркой локальных документов по схеме URI file:///
Это вообще возможно?

That helps: (by rk)
EDIT. For those having similar issues. I think the trick is to open about:config and set closeWindowWithLastTab to false.

Simple and effective.

I tried more group tabs extensions, but this is the best solution for people who were using the old Tab groups manager which worked before Firefox Quantum. Many thanks!