I’ve seen this attack several times in the past couple months. Tries to open a Firefox patch that I always cancel. The URL isn’t from Mozilia. This time I captured my screen. Seems to be coming from ads on news sites like NY Daily News.
I uploaded the screen capture after editing out my IP
http://www.imagebam.com/image/85ecb6454616918
scary stuff! Watch out for these attacks and stay safe! These attacks are getting more and more clever.