Some of you may or may not have already noticed the difference, but I downloaded the latest version of Firefox earlier today and the first thing I noticed (aside from the new layout of the New Tab page) was the strange way in which page scrolling works. It's like the scroll-bar is running on liquid or something, it's weird to explain without you experiencing it first hand.
At first, I didn't really like it. But after a day of using it, it's definitely growing on me. It's... smoooooth.
Update your Firefox today, and discuss your thoughts here.