Vivaldi has the best vertical tabs implementation I've used. Edge would be 2nd. Sideberry would be great if it was easier to rid of the horizontal tabs in FF wh

Vivaldi has the best vertical tabs implementation I've used. Edge would be 2nd. Sideberry would be great if it was easier to rid of the horizontal tabs in FF when Sideberry is active. Horrible having the horizontal tabs still while also having vertical tabs and only some CSS hacks fixes it. Brave has vertical tabs coming soon as they are in nightly I believe.