The package rpms/firefox.git has added or updated architecture specific content in its
spec file (ExclusiveArch/ExcludeArch or %ifarch/%ifnarch) in commit(s):
http://pkgs.fedoraproject.org/cgit/rpms/firefox.git/commit/?id=75872935f9....
Change:
+%ifarch aarch64 ppc64 s390x
Thanks.