+ background-position: left 10px center, 0;
+}
+
+#PanelUI-help[panel-multiview-anchor="true"]:-moz-locale-dir(rtl)::after {
+ background-image: url(chrome://browser/skin/customizableui/subView-arrow-back-inverted-rtl.png);
+ background-position: right 10px center, 0;