diff --git a/mail/components/prefwindow/content/pref-advanced.xul b/mail/components/prefwindow/content/pref-advanced.xul
index 6151b4635d5..9c7b2b7c7a9 100644
--- a/mail/components/prefwindow/content/pref-advanced.xul
+++ b/mail/components/prefwindow/content/pref-advanced.xul
@@ -76,7 +76,6 @@
// return receipts
"alwaysRequest", "receiptFolder", "receiptSend", "notInToCcPref", "outsideDomainPref", "otherCasesPref",
- "mailPaneConfig",
// addressing prefs
"emailCollectionOutgoing", "addressingAutocomplete", "autocompleteLDAP",
@@ -158,7 +157,7 @@
-
+
@@ -168,7 +167,7 @@
prefattribute="checked"/>
-
-
-
-
-
-
-
-
-
-
-
diff --git a/mail/components/prefwindow/content/pref-mailnews.xul b/mail/components/prefwindow/content/pref-mailnews.xul
index 975f2d20fd6..29cec40f510 100644
--- a/mail/components/prefwindow/content/pref-mailnews.xul
+++ b/mail/components/prefwindow/content/pref-mailnews.xul
@@ -39,8 +39,7 @@