I’ve upgraded to Karmic Koala Alpha a couple days ago and realized I am missing flash again. Due to the apturl bug here, firefox wouldn’t do what’s neccessary to install it so I decided to do it the good old fashioned way which thus far, has not failed me yet.
$ wget http://download.macromedia.com/pub/labs/flashplayer10/libflashplayer-10.0.32.18.linux-x86_64.so.tar.gz
$ tar xvzf libflashplayer-10.0.32.18.linux-x86_64.so.tar.gz
$ mkdir .mozilla/plugins # if it doesn't exist
$ mv libflashplayer.so .mozilla/plugins/
Provided you’ve uninstalled your previously installed versions, you should be able to open to check whether everything is ok by typing ‘about:plugins’ in your URL location bar. You should see something like the following at the bottom of the page, at which point you can test by visiting your favorite flash site such as http://www.fat-pie.com.

October 15, 2009 at 4:34 am
THANK YOU!
I’ve been struggling w/ getting both firefox and FLASH working properly after upgrading from Jaunty to the Karmic beta (I decided to upgrade for once, just for fun to see what happens)
This worked PERFECTLY
October 25, 2009 at 11:08 pm
Thanks brah, great tutorial.