Fedora 11 add remi repository
To add this repo:
wget http://rpms.famillecollet.com/remi-release-11.rpm
rpm -Uvh remi-release-11.rpmwget http://rpms.famillecollet.com/remi-release-11.rpm
rpm -Uvh remi-release-11.rpm
To update Firefox, you must enable the repo, as it is disabled by default
yum --enablerepo=remi update firefox