@-moz-document url("chrome://browser/content/browser.xul") {

.tabbrowser-strip:not([collapsed="true"]) ~ tabpanels {
-moz-appearance: tabpanels !important;
margin-bottom: -1px !important;
}

.tabbrowser-strip[collapsed="true"] ~ tabpanels {
margin-top: -2px !important;
margin-bottom: -2px !important;
}

#content browser {
-moz-appearance: listbox !important;
margin-top: 1px !important;
}

.tabbrowser-tabs {
margin-bottom: -2px !important;
z-index: 5000 !important;
}

.tabbrowser-tabs .tabs-bottom {
height: 3px !important;
border-top: none !important;
background-color: -moz-dialog !important;
border-bottom: 1px solid ThreeDShadow !important;
margin-left: 1px !important;
margin-right: 2px !important;
z-index: 1998 !important;
}

.tabbrowser-tab[selected="true"] {
z-index: 2000 !important;
padding-bottom: 2px !important;
margin-bottom: -2px !important;
}

.tabbrowser-tab:not([selected="true"]) {
margin-top: 1px !important;
z-index: 1999 !important;
}

}