how to remove firefox 29 using yum
Can not remove firefox 29 using yum because no match for argument
May 10 19:07:47 Installed: firefox-29.0-5.fc20.x86_64
yum list firefox Loaded plugins: langpacks Available Packages firefox.x86_64 29.0-5.fc20 updates
[root@hpcore log]# yum erase firefox.86_64 Loaded plugins: langpacks No Match for argument: firefox.86_64 No Packages marked for removal
yum erase firefox-29.0.5.fc20_x86_64 Loaded plugins: langpacks No Match for argument: firefox-29.0.5.fc20_x86_64 No Packages marked for removal
Take a closer look at what you've typed there compared to what you've listed as Installed.
next time you may check using RPM
ex. output
then uninstall using YUM