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    <option value="0">Lorem ipsum</option>
    <option value="1">dolor sit amet</option>
    <option value="2">consectetur adipiscing</option>


                /* Firefox 31.0 - select box without arrow */
div {
  position: absolute; /* AFAIK works only in absolute/fixed positioned container. */
select {
  display: flex; /* I actually don't know how this works, but arrow is not visible. */
  border: 0; /* If there is any border, arrow is displayed. */
  width: 200px;
  height: 20px;
  background: #555; /* You can set any background (color/image) and replace firefox arrow with that. */
  color: #fff;