I use FF and have several installed which do a good job, altho I have to keep adding to the block list. It seems the number of pop ups is inexhaustible and continue to grow! My 80 year old cousin who is absolutely only a novice or basic user would like to have some type of pop up blocker. She uses IE and runs XP. As I have no IE experience, I would much appreciate some guidance. I've read a little about AdBlock and AdBlock Pro - any good? Thanks!