Index: browser/themes/winstripe/browser/browser.css
================================================================================
--- browser/themes/winstripe/browser/browser.css
+++ browser/themes/winstripe/browser/browser.css
@@ -1172,7 +1172,7 @@
   list-style-image: url("chrome://global/skin/icons/close.png");
   -moz-appearance: none;
   -moz-image-region: rect(0px, 16px, 16px, 0px);
-  padding: 4px 2px;
+  padding: 0px 0px;
   border: none !important;
 }