}
#button-security:hover,
-#button-security[buttonover="true"],
-#button-security[buttondown="true"],
+#button-security:hover:active,
#button-security[open="true"] {
list-style-image: url("chrome://messenger/skin/smime/icons/lock-hover.gif");
-}
+}
#button-security[disabled="true"] {
list-style-image: url("chrome://messenger/skin/smime/icons/lock-disabled.gif");
-}
+}
#msgcomposeWindow #signing-status {