diff --git a/b2g/app/b2g.js b/b2g/app/b2g.js
index 84d57bb794ae..25b604332894 100644
--- a/b2g/app/b2g.js
+++ b/b2g/app/b2g.js
@@ -928,6 +928,8 @@ pref("general.useragent.device_id", "");
 
 // Make <audio> and <video> talk to the AudioChannelService.
 pref("media.useAudioChannelService", true);
+// Add Mozilla AudioChannel APIs.
+pref("media.useAudioChannelAPI", true);
 
 pref("b2g.version", @MOZ_B2G_VERSION@);
 pref("b2g.osName", @MOZ_B2G_OS_NAME@);
diff --git a/dom/audiochannel/tests/test_telephonyPolicy.html b/dom/audiochannel/tests/test_telephonyPolicy.html
index 4b5a19ad2003..f0294ac3cf81 100644
--- a/dom/audiochannel/tests/test_telephonyPolicy.html
+++ b/dom/audiochannel/tests/test_telephonyPolicy.html
@@ -52,6 +52,7 @@ var tests = [
   // Preferences
   function() {
     SpecialPowers.pushPrefEnv({"set": [["dom.ipc.browser_frames.oop_by_default", true],
+                                       ["media.useAudioChannelAPI", true],
                                        ["media.useAudioChannelService", true],
                                        ["media.defaultAudioChannel", "telephony"],
                                        ["dom.mozBrowserFramesEnabled", true],
diff --git a/dom/html/HTMLMediaElement.cpp b/dom/html/HTMLMediaElement.cpp
index 8d4e8f3b24aa..52674e5ece64 100644
--- a/dom/html/HTMLMediaElement.cpp
+++ b/dom/html/HTMLMediaElement.cpp
@@ -1076,6 +1076,11 @@ static bool UseAudioChannelService()
   return Preferences::GetBool("media.useAudioChannelService");
 }
 
+static bool UseAudioChannelAPI()
+{
+  return Preferences::GetBool("media.useAudioChannelAPI");
+}
+
 void HTMLMediaElement::UpdatePreloadAction()
 {
   PreloadAction nextAction = PRELOAD_UNDEFINED;
@@ -4445,11 +4450,15 @@ nsresult HTMLMediaElement::UpdateChannelMuteState(AudioChannelState aCanPlay)
   // We have to mute this channel.
   if (aCanPlay == AUDIO_CHANNEL_STATE_MUTED && !(mMuted & MUTED_BY_AUDIO_CHANNEL)) {
     SetMutedInternal(mMuted | MUTED_BY_AUDIO_CHANNEL);
-    DispatchAsyncEvent(NS_LITERAL_STRING("mozinterruptbegin"));
+    if (UseAudioChannelAPI()) {
+      DispatchAsyncEvent(NS_LITERAL_STRING("mozinterruptbegin"));
+    }
   } else if (aCanPlay != AUDIO_CHANNEL_STATE_MUTED &&
              (mMuted & MUTED_BY_AUDIO_CHANNEL)) {
     SetMutedInternal(mMuted & ~MUTED_BY_AUDIO_CHANNEL);
-    DispatchAsyncEvent(NS_LITERAL_STRING("mozinterruptend"));
+    if (UseAudioChannelAPI()) {
+      DispatchAsyncEvent(NS_LITERAL_STRING("mozinterruptend"));
+    }
   }
 
   SuspendOrResumeElement(mMuted & MUTED_BY_AUDIO_CHANNEL, false);
diff --git a/dom/media/webaudio/AudioDestinationNode.cpp b/dom/media/webaudio/AudioDestinationNode.cpp
index d758fd308d28..66be99ed0afa 100644
--- a/dom/media/webaudio/AudioDestinationNode.cpp
+++ b/dom/media/webaudio/AudioDestinationNode.cpp
@@ -293,6 +293,11 @@ static bool UseAudioChannelService()
   return Preferences::GetBool("media.useAudioChannelService");
 }
 
+static bool UseAudioChannelAPI()
+{
+  return Preferences::GetBool("media.useAudioChannelAPI");
+}
+
 class EventProxyHandler final : public nsIDOMEventListener
 {
 public:
@@ -543,9 +548,11 @@ AudioDestinationNode::CanPlayChanged(int32_t aCanPlay)
   mAudioChannelAgentPlaying = playing;
   SetCanPlay(playing);
 
-  Context()->DispatchTrustedEvent(
-    playing ? NS_LITERAL_STRING("mozinterruptend")
-            : NS_LITERAL_STRING("mozinterruptbegin"));
+  if (UseAudioChannelAPI()) {
+    Context()->DispatchTrustedEvent(
+      playing ? NS_LITERAL_STRING("mozinterruptend")
+              : NS_LITERAL_STRING("mozinterruptbegin"));
+  }
 
   return NS_OK;
 }
diff --git a/dom/media/webaudio/test/browser_mozAudioChannel.js b/dom/media/webaudio/test/browser_mozAudioChannel.js
index 3da0b89bbe8a..32de7b3dd273 100644
--- a/dom/media/webaudio/test/browser_mozAudioChannel.js
+++ b/dom/media/webaudio/test/browser_mozAudioChannel.js
@@ -35,6 +35,7 @@ function test() {
     "dom/media/webaudio/test/browser_mozAudioChannel.html";
 
   SpecialPowers.pushPrefEnv({"set": [["media.defaultAudioChannel", "content" ],
+                                     ["media.useAudioChannelAPI", true ],
                                      ["media.useAudioChannelService", true ]]},
     function() {
       let tab1 = gBrowser.addTab(testURL);
diff --git a/dom/media/webaudio/test/browser_mozAudioChannel_muted.js b/dom/media/webaudio/test/browser_mozAudioChannel_muted.js
index 551031e43fb9..4d43e1d810c0 100644
--- a/dom/media/webaudio/test/browser_mozAudioChannel_muted.js
+++ b/dom/media/webaudio/test/browser_mozAudioChannel_muted.js
@@ -35,6 +35,7 @@ function test() {
     "dom/media/webaudio/test/browser_mozAudioChannel_muted.html";
 
   SpecialPowers.pushPrefEnv({"set": [["media.defaultAudioChannel", "content" ],
+                                     ["media.useAudioChannelAPI", true ],
                                      ["media.useAudioChannelService", true ]]},
     function() {
       let tab1 = gBrowser.addTab(testURL);
diff --git a/dom/media/webaudio/test/test_mozaudiochannel.html b/dom/media/webaudio/test/test_mozaudiochannel.html
index 0dd3729365bf..f1eff2087eb1 100644
--- a/dom/media/webaudio/test/test_mozaudiochannel.html
+++ b/dom/media/webaudio/test/test_mozaudiochannel.html
@@ -141,7 +141,8 @@ function runTest() {
   test();
 }
 
-SpecialPowers.pushPrefEnv({"set": [["media.useAudioChannelService", true ]]}, runTest);
+SpecialPowers.pushPrefEnv({"set": [["media.useAudioChannelAPI", true ],
+                                   ["media.useAudioChannelService", true ]]}, runTest);
 SimpleTest.waitForExplicitFinish();
 SimpleTest.requestLongerTimeout(5);
 
diff --git a/dom/webidl/AudioContext.webidl b/dom/webidl/AudioContext.webidl
index 791c3568af9f..5da21a2bb94c 100644
--- a/dom/webidl/AudioContext.webidl
+++ b/dom/webidl/AudioContext.webidl
@@ -95,16 +95,16 @@ interface AudioContext : EventTarget {
 // Mozilla extensions
 partial interface AudioContext {
   // Read AudioChannel.webidl for more information about this attribute.
-  [Pref="media.useAudioChannelService"]
+  [Pref="media.useAudioChannelAPI"]
   readonly attribute AudioChannel mozAudioChannelType;
 
   // These 2 events are dispatched when the AudioContext object is muted by
   // the AudioChannelService. It's call 'interrupt' because when this event is
   // dispatched on a HTMLMediaElement, the audio stream is paused.
-  [Pref="media.useAudioChannelService"]
+  [Pref="media.useAudioChannelAPI"]
   attribute EventHandler onmozinterruptbegin;
 
-  [Pref="media.useAudioChannelService"]
+  [Pref="media.useAudioChannelAPI"]
   attribute EventHandler onmozinterruptend;
 
   // This method is for test only.
diff --git a/mobile/android/chrome/content/WebappRT.js b/mobile/android/chrome/content/WebappRT.js
index 3f65ab28319f..76874fb62d14 100644
--- a/mobile/android/chrome/content/WebappRT.js
+++ b/mobile/android/chrome/content/WebappRT.js
@@ -35,6 +35,7 @@ let WebappRT = {
     // Set a future policy version to avoid the telemetry prompt.
     pref("toolkit.telemetry.prompted", 999),
     pref("toolkit.telemetry.notifiedOptOut", 999),
+    pref("media.useAudioChannelAPI", true),
     pref("media.useAudioChannelService", true),
     pref("dom.mozTCPSocket.enabled", true),