diff --git a/components/script/dom/webidls/RTCDataChannel.webidl b/components/script/dom/webidls/RTCDataChannel.webidl
index 7dd195c7cdd..cdc3b9fdd48 100644
--- a/components/script/dom/webidls/RTCDataChannel.webidl
+++ b/components/script/dom/webidls/RTCDataChannel.webidl
@@ -4,7 +4,7 @@
 
 // https://w3c.github.io/webrtc-pc/#dom-rtcdatachannel
 
- [Exposed=Window]
+[Exposed=Window, Pref="dom.webrtc.enabled"]
 interface RTCDataChannel : EventTarget {
   readonly attribute USVString label;
   readonly attribute boolean ordered;
diff --git a/components/script/dom/webidls/RTCDataChannelEvent.webidl b/components/script/dom/webidls/RTCDataChannelEvent.webidl
index 081ab15db25..bc564a12138 100644
--- a/components/script/dom/webidls/RTCDataChannelEvent.webidl
+++ b/components/script/dom/webidls/RTCDataChannelEvent.webidl
@@ -4,7 +4,7 @@
 
 // https://w3c.github.io/webrtc-pc/#dom-rtcdatachannelevent
 
- [Exposed=Window]
+[Exposed=Window, Pref="dom.webrtc.enabled"]
 interface RTCDataChannelEvent : Event {
   constructor(DOMString type, RTCDataChannelEventInit eventInitDict);
   readonly attribute RTCDataChannel channel;
diff --git a/components/script/dom/webidls/RTCError.webidl b/components/script/dom/webidls/RTCError.webidl
index f398c450905..f7ffa3d2d57 100644
--- a/components/script/dom/webidls/RTCError.webidl
+++ b/components/script/dom/webidls/RTCError.webidl
@@ -4,7 +4,7 @@
 
 // https://w3c.github.io/webrtc-pc/#dom-rtcerror
 
-[Exposed=Window]
+[Exposed=Window, Pref="dom.webrtc.enabled"]
 interface RTCError : DOMException {
   constructor(RTCErrorInit init, optional DOMString message = "");
   readonly attribute RTCErrorDetailType errorDetail;
diff --git a/components/script/dom/webidls/RTCErrorEvent.webidl b/components/script/dom/webidls/RTCErrorEvent.webidl
index 9433fc6f579..d3ac256744c 100644
--- a/components/script/dom/webidls/RTCErrorEvent.webidl
+++ b/components/script/dom/webidls/RTCErrorEvent.webidl
@@ -4,7 +4,7 @@
 
 // https://w3c.github.io/webrtc-pc/#dom-rtcerrorevent
 
-[Exposed=Window]
+[Exposed=Window, Pref="dom.webrtc.enabled"]
 interface RTCErrorEvent : Event {
   constructor(DOMString type, RTCErrorEventInit eventInitDict);
   [SameObject] readonly attribute RTCError error;
diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index 9a3b898019f..0af4c016a89 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -13952,7 +13952,7 @@
      ]
     ],
     "interfaces.html": [
-     "0776b2873c16cd34bdc85c23f44030729eaae524",
+     "145c902ff033ba1de46b41dec07992fae4fd2f13",
      [
       null,
       {}