Or better, use Opera to surf porn!
When some crap tries to force the browser, Opera simply crashes! :)
Well, at least it doesn't allow their bugs to work... Opera has a very strict rendering of Javascript, that's why it doesn't accept that stuff... while Internet Explorer just gets everything, good or bad...
Proof: visited a site on Opera, say 5 or 6 times... nothing happened (except a crash, of the browser only, not of the whole system, a couple of times). Dared to visit it on IE once, and got the same virus. It could also give you error messages on desktop when your system starts. Luckily the connection still worked and Google did his job, I found the same remedy and worked, the virus is a well known old trick and one of the less dangerous... Anyway went back with Opera to confirm my suspects and once again that virus couldn't get through, apparently it's conceived to go through IE's faults only...