"Yeah, sure.... you *only* have to upgrade GTK + to
version 2.10 or newer... and compile pango, cairo, glib, libthai,
libdatrie..etc. And yes, you'll be upgrading, on your production
machines, a set of critical libraries on which a huge number of
applications depend to be able to install Firefox 3. Who knows what
that may break? The alternative: upgrading the whole distribution
even though it's working perfectly."