For the last year or so I would visit Twitter, with which I have never had an account, to visit those people that I had bookmarked to see what they had to say today, but when I would scroll down the page it wouldn't scroll past a certain point. It seems the javascript was stopping me from scrolling. (firefox)

I suppose if I started an account, that wouldn't happen, but then I would have an account on Twitter so...I just stopped visiting.