How can I remove this outline from Firefox?

Question

css

This is how it will appear when selected.
*But this is only from the Mac as seen will appear. On Windows, Firefox is fine.
Thanks in advance.

https://codepen.io/Cadeniuc/project/editor/ZrjnkJ

Answer 1

select:-moz-focusring {
  color: transparent;
  text-shadow: 0 0 0 #000;
}

Answer 2

textarea:focus, input:focus{
    outline: none;
}

Cadeniuc Ion , put it on codepen or give an example with code