add extra padding to menu-button toolbar buttons.

mail/base/skin/primaryToolbar.css

@@ -35,6 +35,11 @@
   list-style-image: url("chrome://messenger/skin/icons/mail-toolbar.png");
 }
 
+.toolbarbutton-1[type="menu-button"]
+{
+  min-width: 57px;
+}
+
 .toolbarbutton-1[type="menu"] > .toolbarbutton-menu-dropmarker {
   display: none;
 }

mail/components/addrbook/skin/addressbook.css

@@ -44,6 +44,11 @@
   list-style-image: url("chrome://messenger/skin/addressbook/icons/addressbook-toolbar.png");
 }
 
+.toolbarbutton-1[type="menu-button"]
+{
+  min-width: 57px;
+}
+
 toolbar[mode="icons"] .toolbarbutton-text {
   display: none;
 }

mail/components/compose/skin/messengercompose.css

@@ -45,6 +45,11 @@
   -moz-box-orient: vertical;
   min-width: 0px;
   list-style-image: url("chrome://messenger/skin/messengercompose/compose-toolbar.png");
+}
+
+.toolbarbutton-1[type="menu-button"]
+{
+  min-width: 57px;
 }
 
 toolbar[mode="icons"] .toolbarbutton-text {