--- a/mail/themes/pinstripe/mail/messageHeader.css
+++ b/mail/themes/pinstripe/mail/messageHeader.css
@@ -294,16 +294,20 @@ description[selectable="true"]:focus > d
   min-height: 0;
   min-width: 0;
   padding: 2px;
   margin: 0px;
   -moz-margin-start: 0.4em;
   vertical-align: middle;
 }
 
+.msgHeaderView-button:active {
+  background-image: url(chrome://global/skin/icons/white-gray-gradient-active.gif);
+}
+
 .msgHeaderView-flat-button {
   min-width: 1px;
   -moz-appearance: none;
   font-size: 90%;
   color: black;
   margin-top: 1px;
   margin-bottom: 2px;
   -moz-margin-start: 0px;