--- a/dom/html/HTMLMediaElement.cpp
+++ b/dom/html/HTMLMediaElement.cpp
@@ -2707,16 +2707,21 @@ HTMLMediaElement::FastSeek(double aTime,
   LOG(LogLevel::Debug, ("Reporting telemetry VIDEO_FASTSEEK_USED"));
   Telemetry::Accumulate(Telemetry::VIDEO_FASTSEEK_USED, 1);
   RefPtr<Promise> tobeDropped = Seek(aTime, SeekTarget::PrevSyncPoint, aRv);
 }
 
 already_AddRefed<Promise>
 HTMLMediaElement::SeekToNextFrame(ErrorResult& aRv)
 {
+  if (!mPaused) {
+    RefPtr<Promise> promise = CreateDOMPromise(aRv);
+    promise->MaybeReject(NS_ERROR_DOM_INVALID_STATE_ERR);
+    return promise.forget();
+  }
   if (mSeekDOMPromise) {
     // We can't perform NextFrameSeek while seek is already in action.
     // Just return the pending seek promise.
     return do_AddRef(mSeekDOMPromise);
   }
 
   /* This will cause JIT code to be kept around longer, to help performance
    * when using SeekToNextFrame to iterate through every frame of a video.