I'm surprised there hasn't been more backlash about Quantum regarding specifically this. Tab Mix Plus doesn't work, so Quantum lacks the killer feature of multi-row tabs. And all this nonsense about userchrome.css as a workaround is just .. no. I am not taking on the burden of maintaining that thru future versions.

I'm stuck at 56.02 and that's for sure not great, and if I roll back to ESR I lose my history. And staying stuck at 56 is so far impossible, something keeps auto updating it even though I turned the update off in config. I've resigned to just reinstalling 56.02 periodically.

For the first time in forever I'm seriously considering ditching Moz. /rant