userscript working with Jenkins, navigates to the console after triggered a build of the job.

go_console_after_trigger.user.js

// ==UserScript==
// @name           go console after trigger
// @description    [Jenkins] Go to the console after triggered a build of the job.
// @include        http://*:8080/*/job/*/
// @include        http://*:8080/job/*/
// ==/UserScript==

var jobUrl = unsafeWindow.location.href;
var referrer = unsafeWindow.document.referrer;
if (referrer.indexOf(jobUrl + "build") == 0) {
  unsafeWindow.setTimeout(
    function(){
      unsafeWindow.location.href = jobUrl + "lastBuild/console";
    },
    5000  // usual build waits 5 sec
  );
}