Snap Layouts is one of Windows’ most powerful multitasking features, and using it with your mouse is both fast and intuitive.

I went through about:config but couldn't find an option with which to disable this monstrosity.<BR><BR>No, I didn't download any plugin. I downloaded a nightly recently and autoscroll is enabled by ...

what is autoscroll? Is that the thing where you click the wheel and you move the mouse to move the page? If so, my installation of Mozilla did that "out of the box".