--- a/dom/html/HTMLMediaElement.cpp
+++ b/dom/html/HTMLMediaElement.cpp
@@ -3494,16 +3494,18 @@ void HTMLMediaElement::DecodeError()
   ReportLoadError("MediaLoadDecodeError", params, ArrayLength(params));
 
   if (mDecoder) {
     ShutdownDecoder();
   }
   RemoveMediaElementFromURITable();
   mLoadingSrc = nullptr;
   mMediaSource = nullptr;
+  AudioTracks()->EmptyTracks();
+  VideoTracks()->EmptyTracks();
   if (mIsLoadingFromSourceChildren) {
     mError = nullptr;
     if (mSourceLoadCandidate) {
       DispatchAsyncSourceError(mSourceLoadCandidate);
       QueueLoadFromSourceTask();
     } else {
       NS_WARNING("Should know the source we were loading from!");
     }