--- a/dom/media/MediaDecoderStateMachine.cpp
+++ b/dom/media/MediaDecoderStateMachine.cpp
@@ -2763,16 +2763,23 @@ MediaDecoderStateMachine::LogicalPlaybac
   if (mLogicalPlaybackRate == 0) {
     // This case is handled in MediaDecoder by pausing playback.
     return;
   }
 
   mPlaybackRate = mLogicalPlaybackRate;
   mMediaSink->SetPlaybackRate(mPlaybackRate);
 
+  if (mIsAudioPrerolling && DonePrerollingAudio()) {
+    StopPrerollingAudio();
+  }
+  if (mIsVideoPrerolling && DonePrerollingVideo()) {
+    StopPrerollingVideo();
+  }
+
   ScheduleStateMachine();
 }
 
 void MediaDecoderStateMachine::PreservesPitchChanged()
 {
   MOZ_ASSERT(OnTaskQueue());
   mMediaSink->SetPreservesPitch(mPreservesPitch);
 }