Comfortable Firefox scrollbar

comfy-firefox-scrollbar.css

/**
 * Adapted from http://userstyles.org/styles/89732/ by Elian Dankiewicz
 *
 * Makes Firefox scrollbar thumb a bit darker(visibile)
 *
 */

@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);

scrollbar {
  -moz-appearance: none !important;
  border: none !important
}

scrollbar thumb {
  -moz-appearance: none !important;
  border: 1px solid #707070 !important;
  background: #707070 !important;
  background-clip: padding-box !important;
  -moz-transition: ease-in .2s !important
}