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

/* bottom border of the "Tabs on Bottom" toolbox */
#main-window[treestyletab-mode="vertical"]:not([disablechrome])
  #navigator-toolbox:not([tabsontop="true"]) {
	border-bottom: 1px solid ThreeDShadow;
}
