Vertical tabs without the 'tree' aspect (at least when I last used Vivaldi). Firefox with Tree Style Tab extension is still the best option I've found so far.
I switched from Firefox + Tree Style Tabs to Vivaldi + Tab Stacks and I mostly prefer it. The ability to tile tabs within a group is the killer feature, as well as it being much better supported by being native. Stack by host is great too. The big tradeoff is that you only get one layer of nesting, but I find it's generally worth that tradeoff for me.
mcintyre1994|4 years ago