diff --git a/user.js b/user.js
index 25806ef..c5898db 100644
--- a/user.js
+++ b/user.js
@@ -1512,6 +1512,8 @@ user_pref("privacy.firstparty.isolate.restrict_opener_access", true);
  ** 1217290 - enable fingerprinting resistance for WebGL (see 2010-12) (FF57+)
  ** 1382545 - reduce fingerprinting in Animation API (FF57+)
  ** 1354633 - limit MediaError.message to a whitelist (FF57+)
+ ** 1382533 - enable fingerprinting resistance for Presentation API (see 2513) (FF57+)
+      This blocks exposure of local IP Addresses via mDNS (Multicast DNS)
 ***/
 /* 2699a: enable privacy.resistFingerprinting (FF41+)
  * [1] https://bugzilla.mozilla.org/show_bug.cgi?id=418986 ***/