Automatically accept ToS and redeem Steam keys for those Humble Bundle "Redeem" links

auto-tos-accept.user.js

// ==UserScript==
// @name     Automatically accept ToS and redeem Steam keys
// @version  1
// @grant    none
// @include https://store.steampowered.com/account/registerkey?key=*
// ==/UserScript==

window.addEventListener('load', function () {
	var acceptTOS = document.querySelector('#accept_ssa');
  if (acceptTOS) {
   	acceptTOS.checked = true; 
  
  	setTimeout(function () {
      var continueButton = document.querySelector('#register_btn');
      if (continueButton) {
       	continueButton.click(); 
      }
    }, 250 + (Math.random() * 500));
  }
});