At Mozilla, we work hard to make Firefox the best browser for you. That’s why we're always focused on building a browser that empowers you to choose your own path, that gives you the freedom to explore without worry or compromises. We’re excited to share more about the updates and improvements we ha...
I like tree tabs, but I hate that you can’t easily get rid of the tabs on top, I want vertical tabs and no horizontal ones
Here is what I use for vertical tabs that might fit your needs.
you just need to modify the userChrome.css. is one of the first things i do after installing ff