Just add this bookmark to your browser and run on any site you want. After running it will add small control, helping you to record mouse tracking.
javascript:(function(){var s=document.createElement('script');s.setAttribute('src','https://raw.github.com/pa7/heatmap.js/master/heatmap.js');document.getElementsByTagName('body')[0].appendChild(s);var s=document.createElement('script');s.setAttribute('src','https://raw.github.com/buger/cursor_logger/master/cursor_logger.js');document.getElementsByTagName('body')[0].appendChild(s)})();
For visualization used heatmap.js