Tabs often gets very cluttered. But I know which tabs that I always want to stay open. Email, social media, RSS feed, messenging. In short navigation tabs where you are only in the home screen.
So when you press a link in the management tab, it is opened in the content window. Or something along those lines. Whaddaya think?
You can pin the tabs you want to stay open on Firefox. You can also group tabs.
Side bar tabs is the way to go if you’re using a horisontal widescreen.
Try tabxpert
Not sure I really get your idea but now that you speak of tabs: why does firefox (and other brwosers) not group tabs by domain? It would be awesome to jump between say github, stackoverflow, lemmy and then also switch in between those to maybe different open pages. That would be awesome.