Issue affects Firefox, Thunderbird, gEdit etc.
You will see an error:
error while loading shared libraries: libdbus-1.so.3: cannot open shared object file: No such file or directory
most likly you have a 32 bit version of dbus libraries installed.
To fix that you need to install 64 version as well:
yum install dbus-libs.x86_64
Provided by: ForthScale systems, Cloud experts