I would extend tab groups to tab folders, and integrate them with bookmark folders, as special dynamic bookmark folders (a checkbox per folder would mark bookmark folders that can be opened as tab folders). This way, you add tab group/folder sync wit...
This is looking great, together with vertical tabs and how you used the existing tab search arrow to store the tab groups. Perfect! Now, I just need tab group sync that works with iOS, and I'll be able to switch back to Firefox as my main browser aga...
