Have you tried the Konqueror settings menu there are all sorts of config things in there.
As for Galeon I'm at a loss since I don't use it.
I don't really use mozilla I run phoenix which is smaller and comes with pop-up blocking built in
and yes Mandrake 9 was a bit weird. 8.2 is the one i like the most so far but I've switched to gentoo recently and am loving it. Though Mandrake does have some nice stuff