I filed Redhat bug 2342438
that Fedora has an unneeded duplicated firefox-bin
in /usr/lib64/firefox/
that is _almost the same binary as /usr/lib64/firefox/firefox
.
Likewise there's an unneeded /usr/lib64/thunderbird/thunderbird-bin
([Mozilla bug 697218](https://]
Mozilla bug 658850 has patches that remove mention of firefox-bin from several places, but not the `cp -p in Makefile.in that creates it.