Sometimes when i'm just browsing the web my mouse pc will freeze for a few seconds and i cant move the mouse or keyboard and then its fine. It hasen't done this yet while playing any games. I have an amd fx 6300 @ 4.2 ghz . Could it be that there is not enough voltage going to the cpu?
My laptop does the same thing.
Its just a script issue within you browser. Nothing to worry about.
Chrome F.T.W.