gecko & firefox marked forbidden

[t-u-t]

just a note,
firefox2 has been marked forbidden, and it stopped me twice while 
building gnome2-lite today when pulled for gecko depends by www/epiphany 
and x11/yelp.

on my own system i fixed the Makefiles of these two to use xulrunner, 
(which was there anyway - just removed firefox), but i don't know what 
other effects there are on other ports etc.

n.b. i don't need ff2, just noting