Why doesn't ::before in the slick slider in mozilla fall under the click area?

Question

css

Why doesn't ::before in the slick slider in mozilla fall under the click area?
The slider's rewind arrow is a before element and it's not clickable, it's only clicked when its parent is clicked, is that the little square ?

Answer 1

Change button to span or a. Firefox doesn't handle click on button:before jsfiddle.net/wC2p7/1483