It's not really Perl-ish, but I use the Proximitron. It does the job very nicely, killing pop-ups and lots of other annoying stuff. You can configure it "down to the creek", as we say in Swiss German.

The only disadvantage is that you need two additional dlls if you want to use ssl - of which I can't remember where I got them. But you can find them easily with google or any other search engine. The documentation is quite good.

--cs

There are nights when the wolves are silent and only the moon howls. - George Carlin