diff --git a/modules/plugin/base/src/nsNPAPIPluginStreamListener.cpp b/modules/plugin/base/src/nsNPAPIPluginStreamListener.cpp
index a25e4bf3fe2..d48180c7fee 100644
--- a/modules/plugin/base/src/nsNPAPIPluginStreamListener.cpp
+++ b/modules/plugin/base/src/nsNPAPIPluginStreamListener.cpp
@@ -844,7 +844,7 @@ nsNPAPIPluginStreamListener::HandleRedirectNotification(nsIChannel *oldChannel,
     return false;
   }
 
-  if (!mInst) {
+  if (!mInst || !mInst->CanFireNotifications()) {
     return false;
   }