PaulPA - 9:50 pm on Aug 10, 2012 (gmt 0)

If I recall correctly, Chrome is slightly better than Firefox in terms of Javascript performance. If your CMS is script-heavy, that might explain the difference.

You may have something here. I checked and there seems to be an issue with how FF is handling the javascript. However, I would argue that Chrome is not "slightly" better. At half the speed it is significantly better considering how many updates I need to make and how much time it will be saving.