While I'll write to reset chrome first (google tells how) I can't guess what sites you go to. Chrome and many browsers can do this without protection on bad or very heavy sites.
Unless more is known I have to write this is normal on some sites.
I use chrome but added Web Of Trust and Adblock+. Also I use Firefox if Chrome freezes on a site. So for me, I never worry about the issue you are asking about since I have a spare browser.
Been having a problem with Google Chrome for the past few days. Every so often, it will freeze with a not responding message at the top and once I close it, it refuses to open again. This usually ends with me having to remove and reinstall Chrome which I've had to do five times in the last few days.
At first, I put it down to a certain pop up heavy site I visited a couple of times but it has happened again while only on trusted sites. Using Windows 8 by the way.
Has anyone got any idea how to stop this? I've checked for extensions to chrome but can't find anything out of the ordinary.