I'm not sure if greasemonkey scripts have access to header information but if they do that might be one way to solve this for you. http://userscripts.org/scrip

I'm not sure if greasemonkey scripts have access to header information but if they do that might be one way to solve this for you. http://userscripts.org/scripts/show/34231 http://userscripts.org/scripts/show/34231