--- a/media/webrtc/signaling/src/peerconnection/PeerConnectionCtx.cpp
+++ b/media/webrtc/signaling/src/peerconnection/PeerConnectionCtx.cpp
@@ -363,17 +363,17 @@ PeerConnectionCtx::UpdateNetworkState(bo
   }
 }
 
 nsresult PeerConnectionCtx::Initialize() {
   initGMP();
 
   mTelemetryTimer = do_CreateInstance(NS_TIMER_CONTRACTID);
   MOZ_ASSERT(mTelemetryTimer);
-  nsresult rv = mTelemetryTimer->SetTarget(gMainThread);
+  nsresult rv = mTelemetryTimer->SetTarget(SystemGroup::EventTargetFor(TaskCategory::Other));
   NS_ENSURE_SUCCESS(rv, rv);
   mTelemetryTimer->InitWithNamedFuncCallback(EverySecondTelemetryCallback_m, this, 1000,
                                              nsITimer::TYPE_REPEATING_PRECISE_CAN_SKIP,
                                              "EverySecondTelemetryCallback_m");
 
   if (XRE_IsContentProcess()) {
     WebrtcGlobalChild::Create();
   }