diff --git a/mozilla/content/base/public/nsIContent.h b/mozilla/content/base/public/nsIContent.h
index fa951c07d40..9d481d8123a 100644
--- a/mozilla/content/base/public/nsIContent.h
+++ b/mozilla/content/base/public/nsIContent.h
@@ -520,7 +520,17 @@ public:
   };
   virtual PRUint32 GetDesiredIMEState()
   {
-    return IME_STATUS_DISABLE;
+    if (!HasFlag(NODE_IS_EDITABLE))
+      return IME_STATUS_DISABLE;
+    nsIContent *editableAncestor = nsnull;
+    for (nsIContent* parent = GetParent();
+         parent && parent->HasFlag(NODE_IS_EDITABLE);
+         parent = parent->GetParent())
+      editableAncestor = parent;
+    // This is in another editable content, use the result of it.
+    if (editableAncestor)
+      return editableAncestor->GetDesiredIMEState();
+    return IME_STATUS_ENABLE;
   }
 
   /**
diff --git a/mozilla/content/events/src/nsIMEStateManager.cpp b/mozilla/content/events/src/nsIMEStateManager.cpp
index ec861a1bf61..1a53604a00b 100755
--- a/mozilla/content/events/src/nsIMEStateManager.cpp
+++ b/mozilla/content/events/src/nsIMEStateManager.cpp
@@ -237,22 +237,10 @@ nsIMEStateManager::GetNewIMEState(nsPresContext* aPresContext,
     return nsIContent::IME_STATUS_DISABLE;
   }
 
-  if (sInstalledMenuKeyboardListener)
+  if (sInstalledMenuKeyboardListener || !aContent)
     return nsIContent::IME_STATUS_DISABLE;
 
-  PRBool isEditable = PR_FALSE;
-  nsCOMPtr<nsISupports> container = aPresContext->GetContainer();
-  nsCOMPtr<nsIEditorDocShell> editorDocShell(do_QueryInterface(container));
-  if (editorDocShell)
-    editorDocShell->GetEditable(&isEditable);
-
-  if (isEditable)
-    return nsIContent::IME_STATUS_ENABLE;
-
-  if (aContent)
-    return aContent->GetDesiredIMEState();
-
-  return nsIContent::IME_STATUS_DISABLE;
+  return aContent->GetDesiredIMEState();
 }
 
 void