Causes pages to hang Rated 2 out of 5 stars

I've been having a problem for some time now with a lot of web pages hanging at 90%+ and pages such as http://ubuntuforums.org having scripts timeout. I finally got around to making the time to disable every one of my dozens of addons and re-enabling them one-by-one to find the culprit. It turns out MozCC was the culprit.