From Fedora Project Wiki

Enabling Flash Plugin

Adobe offers several versions of their 32 bit Flash Player 10. In general, the YUM version is preferred since it will allow the player to be updated automatically through Fedora's normal update mechanism. The YUM version simply installs the repository. After that, you must install the player itself.

For i386

After installing the yum repository:

su -c 'yum install flash-plugin alsa-plugins-pulseaudio'

You will need to authorize Adobe's key during the install. You may get a message indicating that alsa-plugins-pulseaudio is already installed. This is not a problem.

After the installation, exit all copies of Firefox to enable the plugin.


For X86_64

At the time of this release, Adobe has an alpha version of a 64 bit player. These instructions are for installing the 32-bit player.

After installing Adobe's yum repository:

su -c 'yum install flash-plugin nspluginwrapper.i386 \
    alsa-plugins-pulseaudio.i386'

You will need to authorize Adobe's key during the install.

After the installation, exit all copies of Firefox to enable the plugin.

Checking the plugin

Following the installation for either architecture, start Firefox and type in the addressbar:

about:plugins

You should see a section similar to the following:

Flash-check-2.png

This tells you that Adobe's flash player has been successfully installed.

SELinux problems

In some cases, {{{nspluginwrapper}}} produces SELinux AVC errors, some of which may prevent viewing Flash content. Changing the default SELinux booleans may resolve this problem, but eliminates a great deal of security when using {{{nspluginwrapper}}}:

su -c 'setsebool -P allow_unconfined_nsplugin_transition=0'