You sound like my cousin. I remember those big old things. My beef is not with useless ads on internet; but on tv too. Every two seconds you are interrupted by those pos.
I kept wanting to turn on AdBlock during the Olympics Opening Ceremony the other night (never watch tv otherwise). Finally decided the off button would work just as well. Note to OP: You need Firefox Noscript addon also to lasso and choke those malevolent scripts.