All: Whenever I go to a site (such as [URL="http://www.mirredge.com"]www.mirredge.com[/URL]) and look at the Quick Time video, my Firefox 3.6.3 browser will crash. It plays the video well; but when I click on the 'x' at the top right of the QT window to close it, my Firefox browser crashes. When I have a few open tabs, my Firefox browser will hang. Any ideas on what is wrong and how to fix this? Keith