There is a bug in this add-on which I thought would be resolved by now. I am on Firefox Quantum and 'Restore all tabs' does not work. It just loses it. I have spent countless hours going through my history to visit the pages again. Restore all fails every single time. Luckily, I found a way to stop this. I lock the tabs nowadays and share it as a webpage to use them. Very inconvenient. Please look into this issue

i just suddenly lost all my saved books from this shitty extension.do not touch

I'd really like it if clicking the button just added that tab to a one-tab list instead of adding all my unpinned tabs at once, or if I could choose this behaviour in the options menu.

The system of collecting all tabs I'm not currently using in a single tab is promising, hence four stars, but the current implementation where I send all tabs at once to OneTab isn't super useful to me.

Nice design and enhencement of tab groups.

Thanks for update for FF Quantum =D