December 14th,2009 by Allan Bogh

It's assumed that you have already installed the flashplugin-installer package from Synaptic and are currently using the 32bit wrapper (nspluginwrapper) for Flash. The first set of instructions will work off of this assumption.

Open Synaptic and remove the flashplugin-installer package.

Download the latest 64bit release for Linux from Adobe Labs. The latest labs version can be found here. Save this to a directory of your choice and navigate to that directory. We'll use "~/Desktop/Flash/" for the rest of this article.

Extract the libflashplayer.so file to the directory.

You can do a search to find out where to install it by using the following command in a terminal window:

sudo find / -name libflashplayer.so && sudo find / -name npwrapper.libflashplayer.so

Copy the libflashplayer.so file to any directory which shows up in the previous find command. Erase any npwrapper.libflashplayer.so file that was found. If you've uninstalled the flashplayer-installer application then you may not find any, but sometimes they hang around.

If you could not find previous installations then copy the file to the /usr/share/ubufox/plugins/ directory. If you don't have that directory you can copy it to /usr/lib/mozilla/plugins/. Essentially, wherever the Firefox plugins directory is you need the file. This file can be in the Mozilla plugins directory or the Firefox plugins directory, or both, it doesn't matter.

Restart Firefox for the changes to take effect.

When Firefox reopens go to about:plugins. You should see Shockwave Flash listed with File name: libflashplayer.so and version Shockwave Flash 10.0 r42 or above.

You can test it with YouTube, DailyMotion, Break.com, TheDailyShow.com, or ColbertNation.com (the essential video websites).