1 files changed, 3 insertions, 2 deletions
diff --git a/components/script/dom/webidls/XRWebGLLayer.webidl b/components/script/dom/webidls/XRWebGLLayer.webidl
index 9f208ddc5f9..163bfd24568 100644
--- a/components/script/dom/webidls/XRWebGLLayer.webidl
+++ b/components/script/dom/webidls/XRWebGLLayer.webidl
@@ -19,7 +19,8 @@ dictionary XRWebGLLayerInit {
 
 [SecureContext, Exposed=Window, Constructor(XRSession session,
             XRWebGLRenderingContext context,
-            optional XRWebGLLayerInit layerInit)]
+            optional XRWebGLLayerInit layerInit),
+    Pref="dom.webxr.enabled"]
 interface XRWebGLLayer : XRLayer {
   // // Attributes
   readonly attribute XRWebGLRenderingContext context;
@@ -39,4 +40,4 @@ interface XRWebGLLayer : XRLayer {
 
   // // Static Methods
   // static double getNativeFramebufferScaleFactor(XRSession session);
-};
-\ No newline at end of file
+};