Raw Source
Patabugen / Always Remember Me 

// ==UserScript==
// @name         Always Remember Me
// @namespace    https://www.patabugen.co.uk/
// @version      2.5.7
// @description  Always tick "Remmeber Me" or "Keep me logged in" options when presented.
// @license MIT
// @author       Sami Walbury (n Greenbury)
// @match        http://*
// @match        https://*
// @include      http://*
// @include      https://*
// @run-at       document-idle
// @downloadURL  https://openuserjs.org/install/Patabugen/Always_Remember_Me.user.js
// @updateURL    https://openuserjs.org/meta/Patabugen/Always_Remember_Me.meta.js
// @copyright    2017, Patabugen (https://openuserjs.org/users/Patabugen)
// @grant        none
// ==/UserScript==
/**
 * Changelog:
 * 2.5.7 2024-06-17 Added team_member_remember_me
 * 2.5.6 2023-01-23 Added C2__remember_my_email_0
 * 2.5.5 2022-10-31 Added remember_me_checkbox
 * 2.5.4 2022-10-31 Updated fastmail.com v18-input from v25
 * 2.5.3 2022-06-15 Added id_kep
 * 2.5.2 2022-05-25 Added rememberDetail
 * 2.5.1 2022-04-09 Fixed faulty @match (and included @include for compatibility)
 * 2.5 2022-04-09 Removed 'frmLogin:loginRemember' for now because it causes errors with google docs. Replaced @include with @match
 * 2.4.1 2022-03-07 Added 'remember-input'
 * 2.4 2021-12-10 Disabled debugmode (sorry for the console.log spam!)
 * 2.3 2021-12-03 Added CSS Selector support (And some new rules). Also updated @source URL
 * 2.2 2021-01-06 Added new rules
 * 2.1 2020-11-25 Fixed bug which stopped Class or IDs from being checked.
 * 2.0 2020-11-24 Merged the three lists is all listed names are checked for as class, ID or Name.
 * 1.* Initial Release. Various misc updates adding rules over time.
 **/
(function() {
    'use strict';

    // Set this to true if you want to output debug info about what the plugin
    // finds and does.
    var armDebug = false;

    function armLog(arg1, arg2)
    {
        if ( ! armDebug ) {
            return;
        }
        console.log(arg1, arg2);
    }

    // Given an array of nodes, make sure they're all ticked. Does nothing if
    // the checkbox is already checked, if it's not checked will set it to
    // 'false' and then click on it so we trigger any click events which may
    // be registered.
    function check_all_checkboxes(checkBoxes)
    {
        armLog("Attempting to check", checkBoxes);

        if ( checkBoxes === undefined || !checkBoxes || checkBoxes.length === 0 ) {
            // If the array is empty, there's nothing to do here.
            return;
        }
        for(var i = 0; i < checkBoxes.length; i++){
            // If we're not even truthy, we have nothing to be doing here
            if ( ! checkBoxes[i] ) {
                armLog("Skipping because this node is not truthy", checkBoxes[i]);
                continue;
            }

            // If we don't support click, this might not be a valid node.
            if ( ! checkBoxes[i].click ) {
                armLog("Skipping because this node does not support a click", checkBoxes[i]);
                continue;
            }

            // If we're already checked, don't do anything
            if ( checkBoxes[i].checked ) {
                armLog("Skipping because this node is already checked", checkBoxes[i]);
                continue;
            }
            armLog("Making this node be checked", checkBoxes[i]);
            checkBoxes[i].checked = false;
            checkBoxes[i].click();
        }
    }

    // To support more checkboxes add their name, ID or class to this list.
    var nodeNamesOrIds = [
        'remember',
        'rememberme',
        'rememberMe',
        'remember-me',
        'remember_me',
        'sso_RememberMe',
        'user_session_remember_me',
        'rememberMe-true',
        'account_remember_me',
        'trusted_device',
        'trust_device',
        'v25-input',
        'v20-input',
        'remember_login-label',
        'keepMeLoggedIn',
        'rememberMeBox',
        'remember_me_checkbox',
        'v25-input',
        'v18-input',
        'v33-input',
        'session_form_trusted_device',
        '.auth-remember-me-panel input[type=checkbox]',
        'remember-input',
        'rememberDetail',
        'id_kep',
        'C2__remember_my_email_0',
        'team_member_remember_me'
     ];

    function check_all_remember_me_checkboxes()
    {
        for(var nameIndex = 0; nameIndex < nodeNamesOrIds.length; nameIndex++) {
            armLog('Looking up by name: ' + nodeNamesOrIds[nameIndex]);
            check_all_checkboxes(document.getElementsByName(nodeNamesOrIds[nameIndex]));
            armLog('Looking up by ID: ' + nodeNamesOrIds[nameIndex]);
            check_all_checkboxes([ document.getElementById(nodeNamesOrIds[nameIndex])]);
            armLog('Looking up by class: ' + nodeNamesOrIds[nameIndex]);
            check_all_checkboxes(document.getElementsByClassName(nodeNamesOrIds[nameIndex]));
            armLog('Looking up by selector: ' + nodeNamesOrIds[nameIndex]);
            check_all_checkboxes(document.querySelectorAll(nodeNamesOrIds[nameIndex]));
        }
    }

    // We already run when the document is totally ready (see @run-at above) but
    // some sites need another moment to get ready (specifically FastMail.com at the
    // time of writing. A half-second delay shouldn't affect our users experience.
    setTimeout(check_all_remember_me_checkboxes, 500);
})();