I switched to Vivaldi a few months ago. It's not as polished as Chrome or Firefox but it was made by the people who made Opera, and it shows.
Just having tabs laid out vertically makes it worth it.
Just having tabs laid out vertically makes it worth it.
It can't hide the horizontal tabs though because of the strict rules imposed on FF extensions, so you have to hack around it yourself as described here: https://github.com/piroor/treestyletab/wiki/Code-snippets-fo...