[romland]

I've been using the Firefox addon called "Tree Style Tab" for quite a few years now. I'm quite pleased with it since I have more width than height on my screen anyway.

Just a heads up!

[eropple]

I used to use Tree Style Tabs, but I moved to Sidebery a couple years ago and I'm pretty happy with it.

Now somebody else can inform me about the newest one.

[muppetman]

I love sidebury but how do you cope with two lots of tabs? Do you use tweaks to remove the top line?

[botanical]

I use Tree Style Tabs with it set to autohide, makes for even more screen space