Yes, they’re native in Edge and superior to any of the extension-based implementations in Firefox (and FF has no native vertical tabs). Floorp is a pretty good

Yes, they’re native in Edge and superior to any of the extension-based implementations in Firefox (and FF has no native vertical tabs). Floorp is a pretty good FF fork that has better vertical tabs, but they’re still not as clean and stable as Edge. Every word of that is painful to type but no less true.