diff --git a/UI/WebServerResources/UIxPreferences.js b/UI/WebServerResources/UIxPreferences.js
index eee8082b2..7d5af1fe9 100644
--- a/UI/WebServerResources/UIxPreferences.js
+++ b/UI/WebServerResources/UIxPreferences.js
@@ -32,7 +32,12 @@ function onChoiceChanged(event) {
 }
 
 function initPreferences() {
-  CKEDITOR.replace('signature',
+  _setupEvents(true);
+  if (typeof (initAdditionalPreferences) != "undefined")
+    initAdditionalPreferences();
+
+  if ($("signature")) {
+    CKEDITOR.replace('signature',
                      {
                         skin: "v2",
                         height: "90px",
@@ -44,18 +49,16 @@ function initPreferences() {
                      }
                     );
 
-  _setupEvents(true);
-  if (typeof (initAdditionalPreferences) != "undefined")
-    initAdditionalPreferences();
-  $("replyPlacementList").observe ("change", onReplyPlacementListChange);
-  onReplyPlacementListChange();
+    $("replyPlacementList").observe ("change", onReplyPlacementListChange);
+    onReplyPlacementListChange();
 
-  $("composeMessagesType").observe ("change", onComposeMessagesTypeChange);
+    $("composeMessagesType").observe ("change", onComposeMessagesTypeChange);
 
-  if (!UserDefaults["ComposeMessagesType"])
-    UserDefaults["ComposeMessagesType"] = "text";
+    if (!UserDefaults["ComposeMessagesType"])
+      UserDefaults["ComposeMessagesType"] = "text";
 
-  onComposeMessagesTypeChange ();
+    onComposeMessagesTypeChange ();
+  }
 }
 
 function onReplyPlacementListChange() {