diff --git a/scss/_reboot.scss b/scss/_reboot.scss
index 50ba7431b991..58e1a34d0275 100644
--- a/scss/_reboot.scss
+++ b/scss/_reboot.scss
@@ -411,15 +411,6 @@ button {
   border-radius: 0;
 }
 
-// Work around a Firefox bug where the transparent `button` background
-// results in a loss of the default `button` focus styles.
-// Credit https://github.com/suitcss/base/
-
-button:focus {
-  outline: dotted 1px;
-  outline: -webkit-focus-ring-color auto 5px;
-}
-
 // 1. Remove the margin in Firefox and Safari
 
 input,