> If your PC sounds like a jet engine, you're on a heavy Flash site and should close your browser ASAP. There is a duolingo page that manages to kill my comput

> If your PC sounds like a jet engine, you're on a heavy Flash site and should close your browser ASAP. There is a duolingo page that manages to kill my computer to death if I am not fast enough to close it. (Fortunately I only get it ~once a week.) Flash was easily blockable, but javascript, especially something that is compiled to javascript is much harder to catch.