remember_me_forever.js

// ==UserScript==
// @name        login
// @namespace   http://fluidapp.com
// @description This keeps you logged in to new relic across browser sessions
// @include     *
// @author      Sam Goldstein
// ==/UserScript==

(function () {
    if (window.fluid) {
      // Session cookie identifier
      var CookieName = '_newrelic_session_id'

      function LongTermCookie(cookieName) {

        // http://www.quirksmode.org/js/cookies.html#script
        function createCookie(name,value,days) {
            if (days) {
                var date = new Date();
                date.setTime(date.getTime()+(days*24*60*60*1000));
                var expires = "; expires="+date.toGMTString();
            }
            else var expires = "";
            document.cookie = name+"="+value+expires+"; path=/";
        }

        function readCookie(name) {
            var nameEQ = name + "=";
            var ca = document.cookie.split(';');
            for(var i=0;i < ca.length;i++) {
                var c = ca[i];
                while (c.charAt(0)==' ') c = c.substring(1,c.length);
                if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
            }
            return null;
        }

        function eraseCookie(name) {
            createCookie(name,"",-1);
        }

        // Set the cookie to expire in 3000 days
        createCookie(cookieName, readCookie(cookieName), 3000);
      }
    }
    new LongTermCookie(CookieName)
})();