I've seen this thing about "multiple scroll bars" in relation to scribd quite a bit (often presented as if this is a killer point that is the striking blow in t

I've seen this thing about "multiple scroll bars" in relation to scribd quite a bit (often presented as if this is a killer point that is the striking blow in the argument against scribd). When I first used scribd, I remember seeing two scrollbars on the right (this author says left ("And it introduces confusing functionality (TWO scrollbars on the left!? WTF?)"), which is weird, because vertical scollbars rarely, if ever, appear on the left). Then I realized that, since the scribd flash widget takes up the entire screen, the Ad Block Plus firefox plugin was adding its little "block" icon/tab, which was really making the widget larger than the size of the browser viewport. So there was the scrollbar created by the scribd interface, and the browser's scrollbar. Disabling Ad Block for scribd.com appears to have "fixed" this.