A better option is to use
www.opera.com, as it has a built-in pop-up stopper that works 100%.
I have not seen a pop-up in over two years now, since using Opera.
It crashes FAR less than IE, WON"T freeze or stop your compuer if it does, and if it does it'll pick up right where it left off.
It's also far easier to use, more customisable, and noticeably faster.