diff --git a/embedding/components/webbrowserpersist/src/nsWebBrowserPersist.cpp b/embedding/components/webbrowserpersist/src/nsWebBrowserPersist.cpp
index 55ad3a0bacee..60c84ec52146 100644
--- a/embedding/components/webbrowserpersist/src/nsWebBrowserPersist.cpp
+++ b/embedding/components/webbrowserpersist/src/nsWebBrowserPersist.cpp
@@ -99,6 +99,7 @@
 #include "nsIDOMHTMLDocument.h"
 
 #include "ftpCore.h"
+#include "nsITransport.h"
 #include "nsISocketTransport.h"
 #include "nsIStringBundle.h"
 
@@ -945,6 +946,8 @@ NS_IMETHODIMP nsWebBrowserPersist::OnStatus(
         case NS_NET_STATUS_SENDING_TO:
         case NS_NET_STATUS_RECEIVING_FROM:
         case NS_NET_STATUS_WAITING_FOR:
+        case nsITransport::STATUS_READING:
+        case nsITransport::STATUS_WRITING:
             break;
 
         default: