diff --git a/third_party/libwebrtc/README.moz-ff-commit b/third_party/libwebrtc/README.moz-ff-commit
index 4635710b9db9..8ffd7b06a174 100644
--- a/third_party/libwebrtc/README.moz-ff-commit
+++ b/third_party/libwebrtc/README.moz-ff-commit
@@ -13581,3 +13581,6 @@ d2cd1effb8
 # MOZ_LIBWEBRTC_SRC=/home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwebrtc-checkout/src MOZ_LIBWEBRTC_COMMIT=mjfdev bash dom/media/webrtc/third_party_build/fast-forward-libwebrtc.sh
 # base of lastest vendoring
 c61c9783f5
+# MOZ_LIBWEBRTC_SRC=/home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwebrtc-checkout/src MOZ_LIBWEBRTC_COMMIT=mjfdev bash dom/media/webrtc/third_party_build/fast-forward-libwebrtc.sh
+# base of lastest vendoring
+3ba35c3fe2
diff --git a/third_party/libwebrtc/README.mozilla b/third_party/libwebrtc/README.mozilla
index 64c2035d6059..28ef8f5b0f43 100644
--- a/third_party/libwebrtc/README.mozilla
+++ b/third_party/libwebrtc/README.mozilla
@@ -9066,3 +9066,5 @@ libwebrtc updated from /home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwe
 libwebrtc updated from /home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwebrtc-checkout/src commit mjfdev on 2022-07-14T15:10:58.037243.
 # python3 vendor-libwebrtc.py --from-local /home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwebrtc-checkout/src --commit mjfdev libwebrtc
 libwebrtc updated from /home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwebrtc-checkout/src commit mjfdev on 2022-07-14T15:11:38.167501.
+# python3 vendor-libwebrtc.py --from-local /home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwebrtc-checkout/src --commit mjfdev libwebrtc
+libwebrtc updated from /home/mfroman/git-checkouts/trial-webrtc-builds/moz-libwebrtc-checkout/src commit mjfdev on 2022-07-14T15:12:17.618259.
diff --git a/third_party/libwebrtc/examples/objc/AppRTCMobile/tests/ARDAppClient_xctest.mm b/third_party/libwebrtc/examples/objc/AppRTCMobile/tests/ARDAppClient_xctest.mm
index 2694e499145d..60c8d7ef6070 100644
--- a/third_party/libwebrtc/examples/objc/AppRTCMobile/tests/ARDAppClient_xctest.mm
+++ b/third_party/libwebrtc/examples/objc/AppRTCMobile/tests/ARDAppClient_xctest.mm
@@ -161,6 +161,8 @@
 
 #pragma mark - Cases
 
+// TODO(crbug.com/webrtc/13991): testSession crashes when running on simulators.
+#if !TARGET_IPHONE_SIMULATOR
 // Tests that an ICE connection is established between two ARDAppClient objects
 // where one is set up as a caller and the other the answerer. Network
 // components are mocked out and messages are relayed directly from object to
@@ -227,6 +229,7 @@
     }
   }];
 }
+#endif
 
 // Test to see that we get a local video connection
 // Note this will currently pass even when no camera is connected as a local