Description of problem:
Firefox installs lots of files under $libdir/firefox-$VERSION, where
VERSION is the full version (eg 1.5.0.6).
It would be better if it just used the major version or even no version
at all i think.  Presumably the API doesn't break for every minor release?

Steps to Reproduce:
1. rpm -q firefox
2. rpm -ql firefox firefox-devel | grep `rpm -q --qf "%{name}-%{version}" firefox`$
  
Actual results:
/usr/lib/firefox-1.5.0.6
/usr/include/firefox-1.5.0.6
/usr/share/idl/firefox-1.5.0.6

Expected results:
/usr/lib/firefox-1.5
/usr/include/firefox-1.5
/usr/share/idl/firefox-1.5

Additional info:
Debian uses
/usr/lib/firefox
/usr/include/firefox
for example.

Some -devel packages which link to libgtkembedmoz need to be rebuilt
for every minor firefox update because of this.