minimal-scrollbar.userstyle.css

/* ==UserStyle==
@name           Minimal scrollbar - 2/13/2020, 7:05:30 PM
@namespace      github.com/openstyles/stylus
@version        1.0.0
@description    Replaces the ugly standard scrollbar on all webpages
@author         index
==/UserStyle== */
@-moz-document regexp(".*") {
    ::-webkit-scrollbar {
        width: 8px;
        background: transparent;
    }

    ::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, .15);
    }
}