diff --git a/browser/base/content/aboutDialog.css b/browser/base/content/aboutDialog.css
index dcf6dfcd9d2..507da3197d0 100644
--- a/browser/base/content/aboutDialog.css
+++ b/browser/base/content/aboutDialog.css
@@ -65,11 +65,6 @@
   margin: 0 40px;
 }
 
-.text-link:-moz-focusring,
-.bottom-link:-moz-focusring {
-  outline: 1px dotted;
-}
-
 #currentChannel {
   margin: 0;
   padding: 0;