diff --git a/mozilla/content/base/src/nsGenericDOMDataNode.cpp b/mozilla/content/base/src/nsGenericDOMDataNode.cpp
index 5c8c04e1a75..884bd15f62c 100644
--- a/mozilla/content/base/src/nsGenericDOMDataNode.cpp
+++ b/mozilla/content/base/src/nsGenericDOMDataNode.cpp
@@ -470,6 +470,14 @@ nsGenericDOMDataNode::SetTextInternal(PRUint32 aOffset, PRUint32 aCount,
 
   // Notify observers
   if (aNotify) {
+    CharacterDataChangeInfo info = {
+      aOffset == textLength,
+      aOffset,
+      endOffset,
+      aLength
+    };
+    nsNodeUtils::CharacterDataChanged(this, &info);
+
     if (haveMutationListeners) {
       nsMutationEvent mutation(PR_TRUE, NS_MUTATION_CHARACTERDATAMODIFIED);
 
@@ -483,14 +491,6 @@ nsGenericDOMDataNode::SetTextInternal(PRUint32 aOffset, PRUint32 aCount,
       mozAutoSubtreeModified subtree(GetOwnerDoc(), this);
       nsEventDispatcher::Dispatch(this, nsnull, &mutation);
     }
-
-    CharacterDataChangeInfo info = {
-      aOffset == textLength,
-      aOffset,
-      endOffset,
-      aLength
-    };
-    nsNodeUtils::CharacterDataChanged(this, &info);
   }
 
   return NS_OK;