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

.tabbrowser-tabs {
  margin-top:-2px !important;
  margin-bottom:-2px !important;
  padding:0 !important;
}

.tabbrowser-tab {
  margin-top:2px !important;
  margin-bottom:2px !important;
  padding:0 !important;
}

.tabbrowser-arrowscrollbox {
  max-height:22px !important;
}