So you want to get Adobe Flash working on Firefox in Fedora 17? Here is a quick guide to doing it. Obviously you need root privileges to install the packages.
First you need to install the appropriate repository (32-bit or 64-bit) for the Adobe RPM packages:
# Adobe 32-bit x86 repository rpm -ivh http://linuxdownload.adobe.com/adobe-release/adobe-release-i386-1.0-1.noarch.rpm rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-adobe-linux # Adobe 64-bit x86_64 repository rpm -ivh http://linuxdownload.adobe.com/adobe-release/adobe-release-x86_64-1.0-1.noarch.rpm rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-adobe-linux
If you cannot download these RPMs, check at Adobe for the latest version and download that.
Then run yum to install the following packages:
yum check-update yum install flash-plugin nspluginwrapper alsa-plugins-pulseaudio libcurl
That is it. Restart Firefox and Adobe Flash should be working.