--- a/dom/presentation/PresentationConnection.cpp
+++ b/dom/presentation/PresentationConnection.cpp
@@ -728,35 +728,36 @@ PresentationConnection::RemoveFromLoadGr
 void
 PresentationConnection::AsyncCloseConnectionWithErrorMsg(const nsAString& aMessage)
 {
   if (mState == PresentationConnectionState::Terminated) {
     return;
   }
 
   nsString message = nsString(aMessage);
+  RefPtr<PresentationConnection> self = this;
   nsCOMPtr<nsIRunnable> r =
-    NS_NewRunnableFunction([this, message]() -> void {
+    NS_NewRunnableFunction([self, message]() -> void {
       // Set |mState| to |PresentationConnectionState::Closed| here to avoid
       // calling |ProcessStateChanged|.
-      mState = PresentationConnectionState::Closed;
+      self->mState = PresentationConnectionState::Closed;
 
       // Make sure dispatching the event and closing the connection are invoked
       // at the same time by setting |aDispatchNow| to true.
       Unused << NS_WARN_IF(NS_FAILED(
-        DispatchConnectionCloseEvent(PresentationConnectionClosedReason::Error,
-                                      message,
-                                      true)));
+        self->DispatchConnectionCloseEvent(PresentationConnectionClosedReason::Error,
+                                           message,
+                                           true)));
 
       nsCOMPtr<nsIPresentationService> service =
         do_GetService(PRESENTATION_SERVICE_CONTRACTID);
       if(NS_WARN_IF(!service)) {
         return;
       }
 
       Unused << NS_WARN_IF(NS_FAILED(
-        service->CloseSession(mId,
-                              mRole,
+        service->CloseSession(self->mId,
+                              self->mRole,
                               nsIPresentationService::CLOSED_REASON_ERROR)));
     });
 
   Unused << NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(r)));
 }