diff --git a/accessible/src/atk/nsAccessibleWrap.cpp b/accessible/src/atk/nsAccessibleWrap.cpp

--- a/accessible/src/atk/nsAccessibleWrap.cpp

+++ b/accessible/src/atk/nsAccessibleWrap.cpp

@@ -920,20 +920,20 @@ refChildCB(AtkObject *aAtkObj, gint aChi

     if (!accChild)

         return nsnull;

     AtkObject* childAtkObj = nsAccessibleWrap::GetAtkObject(accChild);

     NS_ASSERTION(childAtkObj, "Fail to get AtkObj");

     if (!childAtkObj)

         return nsnull;

+    g_object_ref(childAtkObj);

     //this will addref parent

     atk_object_set_parent(childAtkObj, aAtkObj);

-    g_object_ref(childAtkObj);

     return childAtkObj;

 }

 gint

 getIndexInParentCB(AtkObject *aAtkObj)

 {

     // We don't use nsIAccessible::GetIndexInParent() because

     // for ATK we don't want to include text leaf nodes as children

diff --git a/accessible/src/atk/nsAppRootAccessible.cpp b/accessible/src/atk/nsAppRootAccessible.cpp

--- a/accessible/src/atk/nsAppRootAccessible.cpp

+++ b/accessible/src/atk/nsAppRootAccessible.cpp

@@ -629,44 +629,63 @@ nsApplicationAccessibleWrap::GetNativeIn

         mAtkObject->role = ATK_ROLE_INVALID;

         mAtkObject->layer = ATK_LAYER_INVALID;

     }

     *aOutAccessible = mAtkObject;

     return NS_OK;

 }

+struct AtkRootAccessibleAddedEvent {

+  AtkObject *app_accessible;

+  AtkObject *root_accessible;

+  PRUint32 index;

+};

+

+gboolean fireRootAccessibleAddedCB(gpointer data)

+{

+    AtkRootAccessibleAddedEvent* eventData = (AtkRootAccessibleAddedEvent*)data;

+    g_signal_emit_by_name(eventData->app_accessible, "children_changed::add",

+                          eventData->index, eventData->root_accessible, NULL);

+    g_object_unref(eventData->app_accessible);

+    g_object_unref(eventData->root_accessible);

+    free(data);

+    

+    return FALSE;

+}

+

 nsresult

 nsApplicationAccessibleWrap::AddRootAccessible(nsIAccessible *aRootAccWrap)

 {

     NS_ENSURE_ARG_POINTER(aRootAccWrap);

     // add by weak reference

     nsresult rv = nsApplicationAccessible::AddRootAccessible(aRootAccWrap);

     NS_ENSURE_SUCCESS(rv, rv);

     AtkObject *atkAccessible = nsAccessibleWrap::GetAtkObject(aRootAccWrap);

     atk_object_set_parent(atkAccessible, mAtkObject);

     PRUint32 count = 0;

     mChildren->GetLength(&count);

-    g_signal_emit_by_name(mAtkObject, "children_changed::add", count - 1,

-                          atkAccessible, NULL);

-#ifdef MAI_LOGGING

-    if (NS_SUCCEEDED(rv)) {

-        MAI_LOG_DEBUG(("\nAdd RootAcc=%p OK, count=%d\n",

-                       (void*)aRootAccWrap, count));

+    // Emit children_changed::add in a timeout

+    // to make sure aRootAccWrap is fully initialized.

+    AtkRootAccessibleAddedEvent* eventData = (AtkRootAccessibleAddedEvent*)

+      malloc(sizeof(AtkRootAccessibleAddedEvent));

+    if (eventData) {

+      eventData->app_accessible = mAtkObject;

+      eventData->root_accessible = atkAccessible;

+      eventData->index = count -1;

+      g_object_ref(mAtkObject);

+      g_object_ref(atkAccessible);

+      g_timeout_add(0, fireRootAccessibleAddedCB, eventData);

     }

-    else

-        MAI_LOG_DEBUG(("\nAdd RootAcc=%p Failed, count=%d\n",

-                       (void*)aRootAccWrap, count));

-#endif

-    return rv;

+    return NS_OK;

 }

 nsresult

 nsApplicationAccessibleWrap::RemoveRootAccessible(nsIAccessible *aRootAccWrap)

 {

     NS_ENSURE_ARG_POINTER(aRootAccWrap);

     PRUint32 index = 0;

@@ -676,33 +695,19 @@ nsApplicationAccessibleWrap::RemoveRootA

     nsCOMPtr<nsIWeakReference> weakPtr = do_GetWeakReference(aRootAccWrap);

     rv = mChildren->IndexOf(0, weakPtr, &index);

     AtkObject *atkAccessible = nsAccessibleWrap::GetAtkObject(aRootAccWrap);

     atk_object_set_parent(atkAccessible, NULL);

     g_signal_emit_by_name(mAtkObject, "children_changed::remove", index,

                           atkAccessible, NULL);

-#ifdef MAI_LOGGING

-    PRUint32 count = 0;

-    mChildren->GetLength(&count);

-

-    if (NS_SUCCEEDED(rv)) {

-        rv = mChildren->RemoveElementAt(index);

-        MAI_LOG_DEBUG(("\nRemove RootAcc=%p, count=%d\n",

-                       (void*)aRootAccWrap, (count-1)));

-    }

-    else

-        MAI_LOG_DEBUG(("\nFail to Remove RootAcc=%p, count=%d\n",

-                       (void*)aRootAccWrap, count));

-#else

     NS_ENSURE_SUCCESS(rv, rv);

     rv = mChildren->RemoveElementAt(index);

-#endif

     InvalidateChildren();

     return rv;

 }

 void

 nsApplicationAccessibleWrap::PreCreate()

 {

     if (!sATKChecked) {