.tab-background-end[selected=true]:-moz-locale-dir(ltr)::after,
.tab-background-start[selected=true]:-moz-locale-dir(rtl)::after {
}
.tab-background-end[selected=true]:-moz-locale-dir(ltr)::after,
.tab-background-start[selected=true]:-moz-locale-dir(rtl)::after {
}