diff --git a/src/other/firefox/common/hide-single-tab.css b/src/other/firefox/common/hide-single-tab.css
index 49c1910..eaad1a5 100644
--- a/src/other/firefox/common/hide-single-tab.css
+++ b/src/other/firefox/common/hide-single-tab.css
@@ -1,5 +1,9 @@
 @namespace xul url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
 
+#tabbrowser-tabs {
+	--tab-min-height: 0 !important;
+}
+
 #tabbrowser-tabs tab:only-of-type,
 #TabsToolbar #alltabs-button {
 	display: none !important;
@@ -8,5 +12,3 @@
 .tab-background, .tab-stack {
 	min-height: 0 !important;
 }
-
-/* TODO: Hidde tabbar bottom border */