install flashplayer for firefox in unbuntu

Installing using the plugin tar.gz:
o Unpack the plugin tar.gz and copy the files to the appropriate location.  
o Save the plugin tar.gz locally and note the location the file was saved to.
o Launch terminal and change directories to the location the file was saved to.
o Unpack the tar.gz file.  Once unpacked you will see the following:
+ libflashplayer.so
+ /usr
o Identify the location of the browser plugins directory, based on your Linux distribution and Firefox version
o Copy libflashplayer.so to the appropriate browser plugins directory.  At the prompt type:
+ cp libflashlayer.so <BrowserPluginsLocation> (/usr/lib/firefox-addons/plugins/)
o Copy the Flash Player Local Settings configurations files to the /usr directory.  At the prompt type:
+ sudo cp -r usr/* /usr