diff --git a/modules/libpref/init/all.js b/modules/libpref/init/all.js
index 389223fc59a..05fc1451621 100644
--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -4901,11 +4901,7 @@ pref("identity.fxaccounts.auth.uri", "https://api.accounts.firefox.com/v1");
 // disable mozsample size for now
 pref("image.mozsamplesize.enabled", false);
 
-// Enable navigator.sendBeacon on all platforms except b2g because it doesn't
-// play nicely with Firefox OS apps yet.
-#ifndef MOZ_WIDGET_GONK
 pref("beacon.enabled", true);
-#endif
 
 // Camera prefs
 pref("camera.control.face_detection.enabled", true);