diff --git a/dom/media/MediaStreamGraph.cpp b/dom/media/MediaStreamGraph.cpp
index 5466ba970abb..b958f5d341b4 100644
--- a/dom/media/MediaStreamGraph.cpp
+++ b/dom/media/MediaStreamGraph.cpp
@@ -2383,9 +2383,8 @@ MediaStream::AddMainThreadListener(MainThreadMediaStreamListener* aListener)
 
   mMainThreadListeners.AppendElement(aListener);
 
-  // If we have to send the notification or we have a runnable that will do it,
-  // let finish here.
-  if (!mFinishedNotificationSent || mNotificationMainThreadRunnable) {
+  // If it is not yet time to send the notification, then finish here.
+  if (!mFinishedNotificationSent) {
     return;
   }
 
@@ -2399,7 +2398,6 @@ MediaStream::AddMainThreadListener(MainThreadMediaStreamListener* aListener)
     NS_IMETHOD Run() override
     {
       MOZ_ASSERT(NS_IsMainThread());
-      mStream->mNotificationMainThreadRunnable = nullptr;
       mStream->NotifyMainThreadListeners();
       return NS_OK;
     }
@@ -2411,11 +2409,7 @@ MediaStream::AddMainThreadListener(MainThreadMediaStreamListener* aListener)
   };
 
   nsRefPtr<nsRunnable> runnable = new NotifyRunnable(this);
-  if (NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(runnable.forget())))) {
-    return;
-  }
-
-  mNotificationMainThreadRunnable = runnable;
+  NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(runnable.forget())));
 }
 
 void
diff --git a/dom/media/MediaStreamGraph.h b/dom/media/MediaStreamGraph.h
index 05d787cb1bbe..088b8ee9a477 100644
--- a/dom/media/MediaStreamGraph.h
+++ b/dom/media/MediaStreamGraph.h
@@ -638,7 +638,6 @@ protected:
   TimeVarying<GraphTime,uint32_t,0> mExplicitBlockerCount;
   nsTArray<nsRefPtr<MediaStreamListener> > mListeners;
   nsTArray<MainThreadMediaStreamListener*> mMainThreadListeners;
-  nsRefPtr<nsRunnable> mNotificationMainThreadRunnable;
   nsTArray<TrackID> mDisabledTrackIDs;
 
   // Precomputed blocking status (over GraphTime).