--- a/xpcom/base/CycleCollectedJSRuntime.cpp
+++ b/xpcom/base/CycleCollectedJSRuntime.cpp
@@ -1400,16 +1400,18 @@ IncrementalFinalizeRunnable::ReleaseNow(
     // NB: This may delete this!
     mRuntime->mFinalizeRunnable = nullptr;
   }
 }
 
 NS_IMETHODIMP
 IncrementalFinalizeRunnable::Run()
 {
+  AUTO_PROFILER_LABEL("IncrementalFinalizeRunnable::Run", GCCC);
+
   if (mRuntime->mFinalizeRunnable != this) {
     /* These items were already processed synchronously in JSGC_END. */
     MOZ_ASSERT(!mDeferredFinalizeFunctions.Length());
     return NS_OK;
   }
 
   TimeStamp start = TimeStamp::Now();
   ReleaseNow(true);