Firefox Extention：nsICookieService 跨域获取Cookie

var ios = Components.classes["@mozilla.org/network/io-service;1"].getService(Components.interfaces.nsIIOService);
var uri = ios.newURI("http://my.domain.com/", null, null);
var cookieSvc = Components.classes["@mozilla.org/cookieService;1"].getService(Components.interfaces.nsICookieService);
var cookie = cookieSvc.getCookieString(uri, null);
alert(cookie);

var cookieManager = Components.classes["@mozilla.org/cookiemanager;1"].getService(Components.interfaces.nsICookieManager);
var iter = cookieManager.enumerator;
while ( iter.hasMoreElements() ){
cookie = iter.getNext().QueryInterface(Components.interfaces.nsICookie);
Application.console.log(cookie.name + " | " + cookie.value + " | " + cookie.host + " | " + cookie.path);
}