--- a/mail/themes/gnomestripe/mail/mailWindow1.css
+++ b/mail/themes/gnomestripe/mail/mailWindow1.css
@@ -57,17 +57,17 @@
   background-color: -moz-Field;
 }
 
 #mailContent {
   -moz-appearance: toolbox;
   background-color: -moz-Dialog;
 }
 
-#mailContent:-moz-lwtheme {
+#tabmail:-moz-lwtheme {
   text-shadow: none;
 }
 
 #folderUnreadCol,
 #folderTotalCol,
 #folderSizeCol {
   text-align: right;
 }

--- a/mail/themes/pinstripe/mail/mailWindow1.css
+++ b/mail/themes/pinstripe/mail/mailWindow1.css
@@ -57,21 +57,20 @@ treechildren::-moz-tree-twisty {
   margin-top: 0px !important;
   margin-bottom: 0px !important;
   -moz-margin-start: 0px !important;
   -moz-margin-end: -4px !important;
 }
 
 /* :::::::::::::::::::::::::::::::::::: */
 
-#mailContent:-moz-lwtheme {
+#tabmail:-moz-lwtheme {
   text-shadow: none;
 }
 
-
 #folderPaneBox {
   border-right: 1px solid #8B8B8B;
   -moz-margin-end: -3px !important;
 }
 
 #folderTree {
   background-image: none !important;
   -moz-appearance: none !important;

--- a/mail/themes/qute/mail/mailWindow1.css
+++ b/mail/themes/qute/mail/mailWindow1.css
@@ -64,17 +64,17 @@
   border-bottom: 1px solid;
 }
 
 #mailContent {
   -moz-appearance: toolbox;
   background-color: -moz-Dialog;
 }
 
-#mailContent:-moz-lwtheme {
+#tabmail:-moz-lwtheme {
   text-shadow: none;
 }
 
 #folderUnreadCol,
 #folderTotalCol,
 #folderSizeCol {
   text-align: right;
 }