diff --git a/src/buttons/css/buttons.css b/src/buttons/css/buttons.css
index 92ed95238..353831c7f 100644
--- a/src/buttons/css/buttons.css
+++ b/src/buttons/css/buttons.css
@@ -52,12 +52,6 @@
     display: none;
 }
 
-/* Firefox: Get rid of the inner focus border */
-.pure-button::-moz-focus-inner{
-    padding: 0;
-    border: 0;
-}
-
 .pure-button-primary,
 .pure-button-selected,
 a.pure-button-primary,