Firefox web driver add cookie snipet

firefox_webdriver_add_cookie.js

//https://code.google.com/p/selenium/source/browse/firefox/src/extension/components/firefoxDriver.js?name=selenium-2.0-alpha-2#586
if (!cookie.domain) {
    var location = Utils.getBrowser(respond.context).contentWindow.location;
    cookie.domain = location.hostname;
  } else {
    var currLocation = Utils.getBrowser(respond.context).contentWindow.location;
    var currDomain = currLocation.host;
    if (currDomain.indexOf(cookie.domain) == -1) {  // Not quite right, but close enough
      respond.isError = true;
      respond.response = "You may only set cookies for the current domain";
      respond.send();
      return;
    }
  }