I've the following in my .fvwm2rc file:

Key F11         A   N        Exec /usr/bin/netscape -noraise -remote "
+openURL(`perl -MTk -e '$_=MainWindow->new->SelectionGet;$_=~s/\s*\+//
+g;print'`,new_window)"
[download]

What it does is to allow me to select a URL, and then hit F11 to have it open in Netscape.

Abigail