@-moz-document url(about:blank), url(about:newtab), url(about:home) {
    html:not(#ublock0-epicker), html:not(#ublock0-epicker) body, #newtab-customize-overlay {
      background: #080808 !important;
    }
}

:root{ scrollbar-color: #383838 #212121  }
*{ scrollbar-width: thin !important }


@-moz-document url(about:privatebrowsing) {
    :root{
        scrollbar-width: none !important;
    }
}