@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
@-moz-document url-prefix('chrome://') {

.tabbrowser-tab .tab-stack {
  height: 29px !important;
  max-height: 29px !important;
  margin: 0 !important;
}

.tabbrowser-tab:not([selected]) .tab-stack {
  padding: 1px 8px 2px !important;
}

.tabbrowser-tab[selected="true"] .tab-stack {
  margin: 0 -3px 0 !important;
  padding: 0 9px 0px !important;
  -moz-border-image: url('chrome://browser/skin/tabbrowser/mrcurveless.png') 0 9 0 9 / 0 9px 0 9px !important;
}

#main-window:not([disablechrome="true"]) #TabsToolbar:-moz-lwtheme .tabbrowser-tab[selected="true"] .tab-stack {
  -moz-border-image: url('chrome://browser/skin/tabbrowser/mrcurveless-lightweight.png') 0 9 0 9 / 0 9px 0 9px !important;
}

#main-window:not([disablechrome="true"])[stylish-platform="Linux"] .tabbrowser-tab[selected="true"] .tab-stack {
  -moz-border-image: url('chrome://browser/skin/tabbrowser/mrcurveless-linux.png') 0 9 0 9 / 0 9px 0 9px !important;
}

#tabbrowser-tabs .tab-content {
  margin: 0 !important;
}

}