I can't figure this out, and I could use some help. Firstly, I prefer FF to Safari, because it is more compatible with a couple of sites I frequent. Okay, I'm running Mac OS 10.6.4 and FF 3.6.8 on a 2009 uMBP. But this problem has been happening since before the last FF update. Randomly, the entire page of every open tab will look like this. There's no way to fix it that I can figure, beyond quitting and restarting. Any thoughts?