diff --git a/dom/media/MediaStreamGraph.cpp b/dom/media/MediaStreamGraph.cpp
index 76cb9b26a..eeeaba5eb 100644
--- a/dom/media/MediaStreamGraph.cpp
+++ b/dom/media/MediaStreamGraph.cpp
@@ -1497,10 +1497,6 @@ MediaStreamGraphImpl::RunInStableState(bool aSourceIsMSG)
         RefPtr<GraphDriver> driver = CurrentDriver();
         MonitorAutoUnlock unlock(mMonitor);
         driver->Start();
-        // It's not safe to Shutdown() a thread from StableState, and
-        // releasing this may shutdown a SystemClockDriver thread.
-        // Proxy the release to outside of StableState.
-        NS_ReleaseOnMainThread(driver.forget(), true); // always proxy
       }
     }