// ==UserScript==
// @name          Reddit multi-upvote
// @description   Upvotes submissions and comments
// @include       https://www.reddit.com/r/url1*
// @include       https://www.reddit.com/r/url2*
// @version       1
// @grant         none
// ==/UserScript==

// submissions only
// var divs = document.querySelectorAll('.thing .arrow.up.login-required');

var divs = document.querySelectorAll('.arrow.up.login-required');

[].forEach.call(divs, function(div) {
  div.click();
});