Places the account name/number for your aws account in the console nav bar, useful if you have to switch between different accounts often

aws-navbar-account-name.user.js

// ==UserScript==
// @name         AWS Console - Account Name in Nav Bar
// @namespace    https://www.martinke.mp
// @version      1.0
// @description  Adds the Account Name in Nav Bar
// @author       @martiuk
// @match        https://*.console.aws.amazon.com/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    var acctName = "";
    if (document.querySelector("#awsc-role-display-name-account") != null) {
        acctName = document.querySelector("#awsc-role-display-name-account").getAttribute("title");
    }
    else {
        acctName = document.querySelector("#awsc-login-display-name-account").getAttribute("title");
    }
    var navBell = document.querySelector("#nav-phd");
    var menuSep = document.createElement("div")
    menuSep.setAttribute("class", "nav-menu-separator");
    var newNode = document.createElement("div")
    newNode.setAttribute("class", "nav-elt nav-menu");
    var nNC = document.createElement("b")
    nNC.setAttribute("class", "nav-elt-label");
    var emB = document.createElement("b")
    emB.appendChild(document.createTextNode(acctName));
    nNC.appendChild(emB);
    newNode.appendChild(nNC);
    navBell.parentNode.insertBefore(newNode, navBell.nextSibling);
    navBell.parentNode.insertBefore(menuSep, navBell.nextSibling);
})();