@Kovan2002 The number is already shown in the Window Panel. If you have large tab stacks, they are much easier to manage in the Window Panel than in the Tab Bar.
@stilez said in Looking for a tab group manager extension - suggestions?:
the groups/stacks are almost never from a single domain
They don't have to be, but if you right-click and use stack tabs by host, the stack will take the host name. You can then drag and drop other tabs from other domains into that stack.
0_1536674663774_Image Magic Tab Stack.png
Hey @silverwuff,
Welcome to the community. As an old-time Opera user, I really miss that feature too. Vivaldi supports tiling of multiple windows, which is not the same but better than nothing. Select two or more tabs and select tile from the tab popup-menu.
It has some nice uses and is even more space efficient than the old Opera multiple document interface, but continued browsing in the tiles is severely limited.