--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -612,16 +612,19 @@ pref("media.benchmark.timeout", 1000);
 #ifdef MOZ_WEBSPEECH
 pref("media.webspeech.recognition.enable", false);
 pref("media.webspeech.synth.enabled", false);
 #endif
 #ifdef MOZ_WEBM_ENCODER
 pref("media.encoder.webm.enabled", true);
 #endif
 
+// Whether to allow recording of AudioNodes with MediaRecorder
+pref("media.recorder.audio_node.enabled", false);
+
 // Whether to autostart a media element with an |autoplay| attribute
 pref("media.autoplay.enabled", true);
 
 // The default number of decoded video frames that are enqueued in
 // MediaDecoderReader's mVideoQueue.
 pref("media.video-queue.default-size", 10);
 
 // The maximum number of queued frames to send to the compositor.