diff --git a/content/treestyletab/treestyletab.css b/content/treestyletab/treestyletab.css
index 0c805f12..b4e8a662 100644
--- a/content/treestyletab/treestyletab.css
+++ b/content/treestyletab/treestyletab.css
@@ -79,12 +79,14 @@ tabbrowser[treestyletab-mode="vertical"] .tabs-stack > *:first-child + * > hbox:
 	direction: ltr !important;
 }
 
+#TabsToolbar {
+	-moz-binding: url(treestyletab.xml#tabs-toolbar);
+}
 #TabsToolbar:not([treestyletab-tabbar-position="top"]),
 #TabsToolbar[treestyletab-tabbar-position="top"]:not([treestyletab-tabbar-fixed="true"]) {
 	line-height: 0 !important;
 	position: fixed !important;
 	-moz-appearance: none !important;
-	-moz-binding: url(treestyletab.xml#tabs-toolbar);
 }
 #TabsToolbar:not([treestyletab-tabbar-position="top"]) .tabbrowser-tabs,
 #TabsToolbar[treestyletab-tabbar-position="top"]:not([treestyletab-tabbar-fixed="true"]) .tabbrowser-tabs {