Did you go to the link I posted? It takes you to Adobe's update site and it should find the correct version and all you should have to do is install it. If that doesn't work, you could try installing a new web browser. I'd recommend Google Chrome, but it's only for PC, so I'd suggest Firefox which can be found here: http://www.mozilla.com/en-US/firefox/

I'd try to update Adobe Flash first though, much easier/quicker fix.