I've noticed that whenever I'm watching or using something Flash supported for a while my CPU is at like 60-120% on just the Flash Player process. My fans will start ramping up and the only way to stop that is to just quit what I'm doing which doesn't fix anything, it's just a hindrance and stops me. I've tried Chrome, Firefox, Safari, all seem to have the same problem, I've tried googling a fix but everyone just seems to say it is down to Mountain Lion. Is there really no fix at all to stop Flash doing this? Yes, I have the latest version of Flash, and yes everything else is up to date. I've checked All Processes and I know for a fact it's only Flash causing this issue. I've done SMC and PRAM resets also just because I'm running out of options. I have also used SMC Fan Control for a while but quite frankly I don't like having my fans turned up high for no reason all the time creating background noise. Can anyone help me or suggest anything? Not using Flash isn't a possibility, and this seems like a giant flaw in the OS or something. Edit: I'm aware this isn't technically 'overheating' otherwise my iMac would shut down, but I can't say I enjoy my iMac being hot enough to boil an egg on top and the fans sounding like vacuum cleaner.