Tried it and was disappointed that it was an additional thing that doesn't hide the default tab bar when enabled. Never ended up using it because of that, plus unreadable tabs is not a daily thing for me.
The trick is to use custom CSS to hide the default tab bar.
Or Firefox could add native support for both orientations, and tab grouping.
Try Sidebery instead.
OK neat I found the setting that allows hiding tabs (so it's just groups again), better than nothing but I'm guessing I'd still need to use custom CSS to just... turn off the horizontal tab bar completely when using the tree menu?
You can try Floorp browser (based on firefox) it hides the default tab bar and looks similar to vivaldi browser.
Also it has tree style tabs built in, you just have to enable it.
Tried it and was disappointed that it was an additional thing that doesn't hide the default tab bar when enabled. Never ended up using it because of that, plus unreadable tabs is not a daily thing for me.
The trick is to use custom CSS to hide the default tab bar.
Or Firefox could add native support for both orientations, and tab grouping.
Try Sidebery instead.
OK neat I found the setting that allows hiding tabs (so it's just groups again), better than nothing but I'm guessing I'd still need to use custom CSS to just... turn off the horizontal tab bar completely when using the tree menu?
You can try Floorp browser (based on firefox) it hides the default tab bar and looks similar to vivaldi browser.
Also it has tree style tabs built in, you just have to enable it.