LifeHacker have a collection of very useful Firefox 2 tweaks that you can do using the famous about:config. You can find tweaks for Session restore, Tab width before scrolling kicks in, Tab close buttons, Fetch only what you click, Limit RAM usage, Turn off chrome tooltips. There is still something that I want to do but didn’t find out how, tabs can easily be scrolled to the right, but if you want to be back to the left ones you should scroll one by one, I would love to have a fast menu to jump to the first ones more easily. Anybody have done this ?