How to add auto scrollbar for one div in firefox if body overflow is hidden?

Question

css

At the body tag {overflow: hidden;} at the desired div {overflow: auto;} when increasing the size of the content inside this div, most browsers automatically add a scrollbar for this div, but firefox does not. How to make a fox so that the scrollbar inside this div is added only when the content inside it increases?
Example https://jsfiddle.net/eazt091m/

Answer 1

overflow: scroll and height: 100%