If you are already running 32 bit Flash in 64 bit Firefox, make sure you remove that before you install the 64 bit version of Flash. This goes for both the system-wide install or the single user installs.

If you head to the Adobe Labs site, you can snag the .tar.gz file that includes the flash plugin.

To uncompress the bugger:

tar -zxvf libflashplayer-10.0.d21.1.linux-x86_64.so.tar.gz

After that completes, you should have libflashplayer.so in the same directory as the .tar.gz file. This is where you need to choose how you would like to do the install. You can install this for your user only, or install it system-wide. If you would like to install system-wide, you will do the following:

Change the user and group associations for the file to root.

sudo chown root:root libflashplayer.so

Then change the permissions if need be to 755. (This may already be the default, but you should still check to be safe…)

sudo chmod 755 libflashplayer.so

Time to move the file to the worldwide plugins directory…

sudo cp libflashplayer.so /usr/lib64/mozilla/plugins

This should do it. You should be able to restart Firefox and start seeing flash in all of its native 64 bit glory!

As for those of you that might not have permissions to do a system-wide install, you can do the following.

cp libflashplayer.so ~/.mozilla/plugins

You don’t need to do any of those other steps besides decompressing the file and restarting Firefox.

I certainly hope this helps everyone out there dealing with the BS of having to get 32 bit Flash working on 64 bit Fedora. This should also work for just about any other distro out there. The locations might be changed, but everything is pretty much the same.