--- a/mail/themes/qute/mail/mailWindow1-aero.css
+++ b/mail/themes/qute/mail/mailWindow1-aero.css
@@ -147,16 +147,21 @@ padding: 4px 0px;
 
   #folderTree {
     -moz-appearance: none;
     background-color: #eef3fa;
     border-top: 1px solid #ffffff;
     border-bottom: none;
     border-left: none;
   }
+
+  #folderTree treechildren::-moz-tree-cell-text(dropOn) {
+    color: -moz-FieldText;
+  }
+
 }
 
 @media all and (-moz-windows-compositor) {
   #messengerWindow[sizemode=normal] tabpanels#tabpanelcontainer {
     border: 1px solid rgba(10%, 10%, 10%, .4);
     border-top: none;
     background-clip: padding-box;
   }