When I switched to Firefox a while back, I also switched to using the Tree Style Tabs extension. It gives you vertical tabs which can be nested like a folder structure. I found it’s way more convenient to know which tab was spawned from a parent tab, and keep similar tabs all in one little grouping. In my opinion, it’s even better than Chrome’s tab grouping. I lose a tiny amount of screen real estate along the left side of the browser, but it really didn’t take long at all to get used to, and now I vastly prefer it.
It’s not the 4th amendment to the Florida constitution. It’s in slot #4 on the ballot.