diff --git a/mozilla/layout/generic/nsObjectFrame.cpp b/mozilla/layout/generic/nsObjectFrame.cpp
index 527834df4aa..e6d51790698 100644
--- a/mozilla/layout/generic/nsObjectFrame.cpp
+++ b/mozilla/layout/generic/nsObjectFrame.cpp
@@ -2024,7 +2024,7 @@ NS_IMETHODIMP nsPluginInstanceOwner::InvalidateRect(nsPluginRect *invalidRect)
 {
   nsresult rv = NS_ERROR_FAILURE;
 
-  if (mOwner && invalidRect) {
+  if (mOwner && invalidRect && mWidgetVisible) {
     //no reference count on view
     nsIView* view = mOwner->GetView();