My daughters play 'Our World' game. The one daughter has Windows 7 and the other has Ubuntu 12.04. Each time the Ubuntu daughter tries to play the game it loads the screen and then within a few seconds the screen goes grey with the following message on the screen - 'The Adobe Flash plugin has crashed' I have tried to install a Flash update but still have the same problem. She would love to play the game as they can follow each other around the virtual world together. Sorry if this seems a dull question but it is important to my daughters. Thanks in anticipation.

I might add that the browser is Firefox.