Automatically Login to Microsoft Account

msautologin.user.js

// ==UserScript==
// @name         MS Automatic Login
// @namespace    http://tampermonkey.net/
// @version      1.1
// @description  Automates login to Microsoft corporate accounts (including education)
// @author       @SpaceSaver2000
// @match        https://login.microsoftonline.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=office.com
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    const EMAIL = "YOUR_EMAIL_HERE";
    const PASS = "YOUR_PASSWORD_HERE";


    setInterval(() => {
        const emailSelection = document.querySelector("input[type=\"email\"]");
        const continueSelection = document.querySelector("input[type=\"submit\"]");
        const passSelection = document.querySelector("input[type=\"password\"]");
        const stayLogged = document.querySelector("#idSIButton9");

        if (emailSelection && emailSelection.value == ""){
            emailSelection.value = EMAIL;
        } else if (emailSelection && emailSelection.value !== "" && continueSelection) {
            continueSelection.focus();
            continueSelection.click();
        } else if (passSelection && passSelection.value == "") {
            passSelection.value = PASS;
        } else if (passSelection && passSelection.value !== "" && continueSelection) {
            continueSelection.focus();
            continueSelection.click();
        } else if (stayLogged) {
            stayLogged.click();
        }
    }, 500)
})();