--- a/dom/media/MediaDecoder.cpp
+++ b/dom/media/MediaDecoder.cpp
@@ -56,17 +56,17 @@ static const uint64_t ESTIMATED_DURATION
 #undef DECODER_LOG
 #undef DUMP_LOG
 
 LazyLogModule gMediaDecoderLog("MediaDecoder");
 #define DECODER_LOG(x, ...) \
   MOZ_LOG(gMediaDecoderLog, LogLevel::Debug, ("Decoder=%p " x, this, ##__VA_ARGS__))
 
 #define DUMP_LOG(x, ...) \
-  NS_DebugBreak(NS_DEBUG_WARNING, nsPrintfCString("Decoder=%p " x, this, ##__VA_ARGS__).get(), nullptr, nullptr, -1)
+  printf_stderr("%s\n", nsPrintfCString("Decoder=%p " x, this, ##__VA_ARGS__).get())
 
 #define NS_DispatchToMainThread(...) CompileError_UseAbstractMainThreadInstead
 
 static const char*
 ToPlayStateStr(MediaDecoder::PlayState aState)
 {
   switch (aState) {
     case MediaDecoder::PLAY_STATE_START:    return "START";