It has been a few years since I played around with capturing mouse movements in the browser but if I remember correctly IE used to allow capturing the mouse movements once the mouse left the browser(or maybe it was only on mouse drag, or might have been in silverlight). If you can collect statistical data on the mouse movements after it has left the browser you could probably figure out what other applications the use is using while your page is loaded,and maybe even what people are doing in those applications. Does anyone know if it is still possible to get the mouse position outside the browser, or if Facebook is collecting information from when the mouse has left the browser window as well?
No. It's not. Not unless you load a java applet.
Also. Don't use IE.
Firefox and no facebook will fix a lot of privacy isseus <- spelled that wrong i know