Custom CSS Scrollbar for Firefox

Question

I want to customize a scrollbar with CSS.

I use this WebKit CSS code, which works well for Safari and Chrome:

::-webkit-scrollbar {
    width: 15px;
         


        

Answer 1

Year 2020 this works

/* Thin Scrollbar */
:root{
  scrollbar-color: rgb(210,210,210) rgb(46,54,69) !important;
  scrollbar-width: thin !important;
}

https://github.com/Aris-t2/CustomCSSforFx/issues/160