The CERT advisory is sort of like GreenPeace telling me to car pool. Surely one more measly car on the road is not going to damage the climate or kill off the whales. Does it? Surely them terrorists are not smart enough to figure out how to exploit these holes and even if they did know how to, they are not going to target my browser. After all what can I do and besides, I am not that important for them to notice. I only work at a bank.