diff --git a/browser/base/content/aboutDialog.css b/browser/base/content/aboutDialog.css
index f0fd9c76b4a9..dd29d3899e4a 100644
--- a/browser/base/content/aboutDialog.css
+++ b/browser/base/content/aboutDialog.css
@@ -79,7 +79,7 @@
 
 #copyright {
   margin-top: 0;
-  -moz-margin-end: 0;
+  -moz-margin-end: 16px;
   margin-bottom: 3px;
   -moz-margin-start: 16px;
 }