Greasemonkey lets you do it - with GM_xmlhttpRequest: http://diveintogreasemonkey.org/api/gm_xmlhttprequest.html http://diveintogreasemonkey.org/api/gm_xmlhttp

Greasemonkey lets you do it - with GM_xmlhttpRequest: http://diveintogreasemonkey.org/api/gm_xmlhttprequest.html http://diveintogreasemonkey.org/api/gm_xmlhttprequest.html