diff --git a/dom/plugins/base/nsNPAPIPluginInstance.cpp b/dom/plugins/base/nsNPAPIPluginInstance.cpp
index 171e8073145..d65e51f2eee 100644
--- a/dom/plugins/base/nsNPAPIPluginInstance.cpp
+++ b/dom/plugins/base/nsNPAPIPluginInstance.cpp
@@ -491,13 +491,6 @@ nsresult nsNPAPIPluginInstance::SetWindow(NPWindow* window)
   return NS_OK;
 }
 
-nsresult
-nsNPAPIPluginInstance::NewStreamToPlugin(nsIPluginStreamListener** listener)
-{
-  // This method can be removed at the next opportunity.
-  return NS_ERROR_NOT_IMPLEMENTED;
-}
-
 nsresult
 nsNPAPIPluginInstance::NewStreamFromPlugin(const char* type, const char* target,
                                            nsIOutputStream* *result)
@@ -648,18 +641,6 @@ nsresult nsNPAPIPluginInstance::GetNPP(NPP* aNPP)
   return NS_OK;
 }
 
-void
-nsNPAPIPluginInstance::SetURI(nsIURI* uri)
-{
-  mURI = uri;
-}
-
-nsIURI*
-nsNPAPIPluginInstance::GetURI()
-{
-  return mURI.get();
-}
-
 NPError nsNPAPIPluginInstance::SetWindowless(bool aWindowless)
 {
   mWindowless = aWindowless;
diff --git a/dom/plugins/base/nsNPAPIPluginInstance.h b/dom/plugins/base/nsNPAPIPluginInstance.h
index acba2f40e40..08ce3b11250 100644
--- a/dom/plugins/base/nsNPAPIPluginInstance.h
+++ b/dom/plugins/base/nsNPAPIPluginInstance.h
@@ -98,7 +98,6 @@ public:
   nsresult Start();
   nsresult Stop();
   nsresult SetWindow(NPWindow* window);
-  nsresult NewStreamToPlugin(nsIPluginStreamListener** listener);
   nsresult NewStreamFromPlugin(const char* type, const char* target, nsIOutputStream* *result);
   nsresult Print(NPPrint* platformPrint);
 #ifdef MOZ_WIDGET_ANDROID
@@ -141,9 +140,6 @@ public:
 
   nsresult GetNPP(NPP * aNPP);
 
-  void SetURI(nsIURI* uri);
-  nsIURI* GetURI();
-
   NPError SetWindowless(bool aWindowless);
 
   NPError SetTransparent(bool aTransparent);
@@ -301,8 +297,6 @@ private:
   // This is only valid when the plugin is actually stopped!
   mozilla::TimeStamp mStopTime;
 
-  nsCOMPtr<nsIURI> mURI;
-
   bool mUsePluginLayersPref;
 #ifdef MOZ_WIDGET_ANDROID
   void* mSurface;