To enable vertical tabs in Firefox, just right-click on any empty area of the horizontal tab bar. If you've run out of space, ...

With the recent Firefox 136 update, Mozilla’s web browser got several improvements and new features, including vertical tabs ...

Zen Browser is a privacy-first, open-source browser offering innovative features like vertical tabs, Workspaces, and Split ...

I'm a little late to this party, but there's a new web browser called Zen Browser that seeks to solve several different issues.