16Jun/110
Fully functional Flash Player on Ubuntu (Firefox/Chrome)
Replace libflashplayer.so in /usr/lib/flashplugin-installer/ with the file you can download here:
http://labs.adobe.com/downloads/flashplayer10_square.html
Why? - For example youtube.com worked for me, but grooveshark.com or livestation.com didn't. - Now everything works fine!