diff --git a/dom/plugins/ipc/PluginInstanceChild.cpp b/dom/plugins/ipc/PluginInstanceChild.cpp
index 18aa8128f684..38f7e961fed6 100644
--- a/dom/plugins/ipc/PluginInstanceChild.cpp
+++ b/dom/plugins/ipc/PluginInstanceChild.cpp
@@ -264,9 +264,9 @@ PluginInstanceChild::InternalGetNPObjectForValue(NPNVariable aValue,
 
         // Make sure that the current actor returned by the parent matches our
         // cached actor!
-        NS_ASSERTION(static_cast<PluginScriptableObjectChild*>(currentActor) ==
+        NS_ASSERTION(!currentActor ||
+                     static_cast<PluginScriptableObjectChild*>(currentActor) ==
                      actor, "Cached actor is out of date!");
-        NS_ASSERTION(currentResult == result, "Results don't match?!");
     }
 #endif