Thank you Volker, thank you Walt! It seems that adding the xulrunner flag was the right way to go.
However euse -i xulrunner says 'Build native browser integration against xulrunner instead of firefox or seamonkey' So.. do I really need xulrunner? I think seamonkey is enought for me... To answer I tried equery d xulrunner [ Searching for packages depending on xulrunner... ] media-video/vlc-0.9.10 (nsplugin & !seamonkey? <net-libs/xulrunner-1.9.1) (nsplugin&!seamonkey? >=net-libs/xulrunner-1.8) www-client/mozilla-firefox-3.0.14 (xulrunner? =net-libs/xulrunner-1.9.0*) but I'm not sure I've interpreted right the result... Do it means that vlc-0.9.10 depends on an xulrunner version between 1.8 and 1.9.1 if I don't have seamonkey installed? If that would be the case, I should simply emerge seamonkey, right? (Sorry for the newbie questions: I'm doing my best to become as much independent as possible!!) Thanks a lot, Massimiliano