Auto load new URLs

var delay = 5 * 1000; // will sleep for 5 seconds

// add sites in this array with comma seperated
var values = [
  "https://www.google.com",
  "https://linkedin.com"
];

for (var i = 0; i < values.length; i++) {
  sleep(delay);
  openPage(values[i]);
}

function sleep(milliseconds) {
  var start = new Date().getTime();
  for (var i = 0; i < 1e7; i++) {
    if ((new Date().getTime() - start) > milliseconds) {
      break;
    }
  }
}

function openPage(link) {
  window.open(link, '_blank');
};