diff --git a/components/tabs.less b/components/tabs.less
index b0006136a..cd2a5c9fd 100644
--- a/components/tabs.less
+++ b/components/tabs.less
@@ -195,23 +195,6 @@
 	text-align: left;
 }
 
-// stylelint-disable selector-no-vendor-prefix, selector-type-no-unknown
-
-/* Fixes old versions of FireFox */
-.vectorMenu ul,
-x:-moz-any-link {
-	min-width: 5em;
-}
-
-/* Returns things back to normal in modern versions of FireFox */
-.vectorMenu ul,
-x:-moz-any-link,
-x:default {
-	min-width: 0;
-}
-
-// stylelint-enable selector-no-vendor-prefix, selector-type-no-unknown
-
 .vectorMenu li {
 	padding: 0;
 	margin: 0;