diff --git a/media/mtransport/WebrtcTCPSocketWrapper.cpp b/media/mtransport/WebrtcTCPSocketWrapper.cpp
index 8e55276d0c9c..b52c322d26c9 100644
--- a/media/mtransport/WebrtcTCPSocketWrapper.cpp
+++ b/media/mtransport/WebrtcTCPSocketWrapper.cpp
@@ -125,13 +125,13 @@ void WebrtcTCPSocketWrapper::OnRead(nsTArray<uint8_t>&& aReadData) {
           &WebrtcTCPSocketCallback::OnRead, std::move(aReadData))));
 }
 
-void WebrtcTCPSocketWrapper::OnConnected() {
+void WebrtcTCPSocketWrapper::OnConnected(const nsCString& aProxyType) {
   MOZ_ASSERT(NS_IsMainThread(), "not on main thread");
   MOZ_ASSERT(mProxyCallbacks, "webrtc TCP callbacks should be non-null");
 
-  MOZ_ALWAYS_SUCCEEDS(mSocketThread->Dispatch(
-      NewRunnableMethod("WebrtcTCPSocketWrapper::OnConnected", mProxyCallbacks,
-                        &WebrtcTCPSocketCallback::OnConnected)));
+  MOZ_ALWAYS_SUCCEEDS(mSocketThread->Dispatch(NewRunnableMethod<nsCString>(
+      "WebrtcTCPSocketWrapper::OnConnected", mProxyCallbacks,
+      &WebrtcTCPSocketCallback::OnConnected, aProxyType)));
 }
 
 }  // namespace net
diff --git a/media/mtransport/WebrtcTCPSocketWrapper.h b/media/mtransport/WebrtcTCPSocketWrapper.h
index 6d352cc7fdac..476eacb43f6d 100644
--- a/media/mtransport/WebrtcTCPSocketWrapper.h
+++ b/media/mtransport/WebrtcTCPSocketWrapper.h
@@ -50,7 +50,7 @@ class WebrtcTCPSocketWrapper : public WebrtcTCPSocketCallback {
 
   // WebrtcTCPSocketCallback
   virtual void OnClose(nsresult aReason) override;
-  virtual void OnConnected() override;
+  virtual void OnConnected(const nsCString& aProxyType) override;
   virtual void OnRead(nsTArray<uint8_t>&& aReadData) override;
 
  protected:
diff --git a/media/mtransport/ipc/PWebrtcTCPSocket.ipdl b/media/mtransport/ipc/PWebrtcTCPSocket.ipdl
index 2344560d221f..4c0d91d066ad 100644
--- a/media/mtransport/ipc/PWebrtcTCPSocket.ipdl
+++ b/media/mtransport/ipc/PWebrtcTCPSocket.ipdl
@@ -32,7 +32,7 @@ parent:
 
 child:
   async OnClose(nsresult aReason);
-  async OnConnected();
+  async OnConnected(nsCString aProxyType);
   async OnRead(uint8_t[] aReadData);
 
   async __delete__();
diff --git a/media/mtransport/ipc/WebrtcTCPSocket.cpp b/media/mtransport/ipc/WebrtcTCPSocket.cpp
index 7b80aa1fc49f..3ade3697ef17 100644
--- a/media/mtransport/ipc/WebrtcTCPSocket.cpp
+++ b/media/mtransport/ipc/WebrtcTCPSocket.cpp
@@ -231,17 +231,16 @@ NS_IMETHODIMP WebrtcTCPSocket::OnProxyAvailable(nsICancelable* aRequest,
   nsresult rv;
 
   if (NS_SUCCEEDED(aResult) && aProxyinfo) {
-    nsCString proxyType;
-    rv = aProxyinfo->GetType(proxyType);
+    rv = aProxyinfo->GetType(mProxyType);
     if (NS_WARN_IF(NS_FAILED(rv))) {
       CloseWithReason(rv);
       return rv;
     }
 
-    if (proxyType == "http" || proxyType == "https") {
+    if (mProxyType == "http" || mProxyType == "https") {
       rv = OpenWithHttpProxy();
-    } else if (proxyType == "socks" || proxyType == "socks4" ||
-               proxyType == "direct") {
+    } else if (mProxyType == "socks" || mProxyType == "socks4" ||
+               mProxyType == "direct") {
       rv = OpenWithoutHttpProxy(aProxyinfo);
     }
   } else {
@@ -452,7 +451,7 @@ void WebrtcTCPSocket::InvokeOnConnected() {
 
   MOZ_ASSERT(mProxyCallbacks, "webrtc TCP callback should be non-null");
 
-  mProxyCallbacks->OnConnected();
+  mProxyCallbacks->OnConnected(mProxyType);
 }
 
 void WebrtcTCPSocket::InvokeOnRead(nsTArray<uint8_t>&& aReadData) {
diff --git a/media/mtransport/ipc/WebrtcTCPSocket.h b/media/mtransport/ipc/WebrtcTCPSocket.h
index 06f9cd56a10d..9455289c610e 100644
--- a/media/mtransport/ipc/WebrtcTCPSocket.h
+++ b/media/mtransport/ipc/WebrtcTCPSocket.h
@@ -82,6 +82,7 @@ class WebrtcTCPSocket : public nsIHttpUpgradeListener,
   bool mForceProxy = false;
   nsCString mLocalAddress;
   uint16_t mLocalPort = 0;
+  nsCString mProxyType;
 
   nsresult DoProxyConfigLookup();
   nsresult OpenWithHttpProxy();
diff --git a/media/mtransport/ipc/WebrtcTCPSocketCallback.h b/media/mtransport/ipc/WebrtcTCPSocketCallback.h
index 68c192b818ef..271b1301b006 100644
--- a/media/mtransport/ipc/WebrtcTCPSocketCallback.h
+++ b/media/mtransport/ipc/WebrtcTCPSocketCallback.h
@@ -17,7 +17,7 @@ class WebrtcTCPSocketCallback {
   NS_INLINE_DECL_PURE_VIRTUAL_REFCOUNTING
 
   virtual void OnClose(nsresult aReason) = 0;
-  virtual void OnConnected() = 0;
+  virtual void OnConnected(const nsCString& aProxyType) = 0;
   virtual void OnRead(nsTArray<uint8_t>&& aReadData) = 0;
 
  protected:
diff --git a/media/mtransport/ipc/WebrtcTCPSocketChild.cpp b/media/mtransport/ipc/WebrtcTCPSocketChild.cpp
index e506fe391f56..d36eb95ef854 100644
--- a/media/mtransport/ipc/WebrtcTCPSocketChild.cpp
+++ b/media/mtransport/ipc/WebrtcTCPSocketChild.cpp
@@ -30,11 +30,12 @@ mozilla::ipc::IPCResult WebrtcTCPSocketChild::RecvOnClose(
   return IPC_OK();
 }
 
-mozilla::ipc::IPCResult WebrtcTCPSocketChild::RecvOnConnected() {
+mozilla::ipc::IPCResult WebrtcTCPSocketChild::RecvOnConnected(
+    const nsCString& aProxyType) {
   LOG(("WebrtcTCPSocketChild::RecvOnConnected %p\n", this));
 
   MOZ_ASSERT(mProxyCallbacks, "webrtc TCP callbacks should be non-null");
-  mProxyCallbacks->OnConnected();
+  mProxyCallbacks->OnConnected(aProxyType);
 
   return IPC_OK();
 }
diff --git a/media/mtransport/ipc/WebrtcTCPSocketChild.h b/media/mtransport/ipc/WebrtcTCPSocketChild.h
index aac43ee81c80..3b849eef09ec 100644
--- a/media/mtransport/ipc/WebrtcTCPSocketChild.h
+++ b/media/mtransport/ipc/WebrtcTCPSocketChild.h
@@ -23,7 +23,7 @@ class WebrtcTCPSocketChild : public PWebrtcTCPSocketChild {
 
   mozilla::ipc::IPCResult RecvOnClose(const nsresult& aReason) override;
 
-  mozilla::ipc::IPCResult RecvOnConnected() override;
+  mozilla::ipc::IPCResult RecvOnConnected(const nsCString& aProxyType) override;
 
   mozilla::ipc::IPCResult RecvOnRead(nsTArray<uint8_t>&& aReadData) override;
 
diff --git a/media/mtransport/ipc/WebrtcTCPSocketParent.cpp b/media/mtransport/ipc/WebrtcTCPSocketParent.cpp
index e76afed261f2..83b8ac4f123e 100644
--- a/media/mtransport/ipc/WebrtcTCPSocketParent.cpp
+++ b/media/mtransport/ipc/WebrtcTCPSocketParent.cpp
@@ -107,10 +107,10 @@ void WebrtcTCPSocketParent::OnRead(nsTArray<uint8_t>&& aReadData) {
   }
 }
 
-void WebrtcTCPSocketParent::OnConnected() {
+void WebrtcTCPSocketParent::OnConnected(const nsCString& aProxyType) {
   LOG(("WebrtcTCPSocketParent::OnConnected %p\n", this));
 
-  if (mChannel && !SendOnConnected()) {
+  if (mChannel && !SendOnConnected(aProxyType)) {
     CleanupChannel();
   }
 }
diff --git a/media/mtransport/ipc/WebrtcTCPSocketParent.h b/media/mtransport/ipc/WebrtcTCPSocketParent.h
index ae2b43d90ac8..2fecb08cd5ef 100644
--- a/media/mtransport/ipc/WebrtcTCPSocketParent.h
+++ b/media/mtransport/ipc/WebrtcTCPSocketParent.h
@@ -39,7 +39,7 @@ class WebrtcTCPSocketParent : public PWebrtcTCPSocketParent,
 
   // WebrtcTCPSocketCallback
   void OnClose(nsresult aReason) override;
-  void OnConnected() override;
+  void OnConnected(const nsCString& aProxyType) override;
   void OnRead(nsTArray<uint8_t>&& bytes) override;
 
   void AddIPDLReference() { AddRef(); }
diff --git a/media/mtransport/nr_socket_tcp.cpp b/media/mtransport/nr_socket_tcp.cpp
index 9797a2d12a41..2abd39068778 100644
--- a/media/mtransport/nr_socket_tcp.cpp
+++ b/media/mtransport/nr_socket_tcp.cpp
@@ -246,8 +246,9 @@ void NrTcpSocket::OnClose(nsresult aReason) {
   DoCallbacks();
 }
 
-void NrTcpSocket::OnConnected() {
+void NrTcpSocket::OnConnected(const nsCString& aProxyType) {
   r_log(LOG_GENERIC, LOG_DEBUG, "NrTcpSocket::OnConnected %p\n", this);
+  mProxyType = aProxyType;
 
   DoCallbacks();
 }
diff --git a/media/mtransport/nr_socket_tcp.h b/media/mtransport/nr_socket_tcp.h
index 741c2cfc4b2c..bb206bcde55c 100644
--- a/media/mtransport/nr_socket_tcp.h
+++ b/media/mtransport/nr_socket_tcp.h
@@ -86,11 +86,13 @@ class NrTcpSocket : public NrSocketBase, public WebrtcTCPSocketCallback {
   int listen(int aBacklog) override;
   int accept(nr_transport_addr* aAddr, nr_socket** aSocket) override;
 
-  bool IsProxied() const override { return true; }
+  bool IsProxied() const override {
+    return mProxyType != "" && mProxyType != "direct";
+  }
 
   // WebrtcTCPSocketCallback
   void OnClose(nsresult aReason) override;
-  void OnConnected() override;
+  void OnConnected(const nsCString& aProxyType) override;
   void OnRead(nsTArray<uint8_t>&& aReadData) override;
 
   size_t CountUnreadBytes() const;
@@ -107,6 +109,7 @@ class NrTcpSocket : public NrSocketBase, public WebrtcTCPSocketCallback {
   bool mClosed;
 
   size_t mReadOffset;
+  nsCString mProxyType;
   std::list<NrTcpSocketData> mReadQueue;
 
   std::shared_ptr<NrSocketProxyConfig> mConfig;
diff --git a/media/mtransport/test/proxy_tunnel_socket_unittest.cpp b/media/mtransport/test/proxy_tunnel_socket_unittest.cpp
index f90cb2e741f7..16057d23c319 100644
--- a/media/mtransport/test/proxy_tunnel_socket_unittest.cpp
+++ b/media/mtransport/test/proxy_tunnel_socket_unittest.cpp
@@ -110,7 +110,7 @@ TEST_F(NrTcpSocketTest, TestConnected) {
   // still not connected just registered for writes...
   ASSERT_TRUE(!mConnected);
 
-  mSProxy->OnConnected();
+  mSProxy->OnConnected(NS_LITERAL_CSTRING("http"));
 
   ASSERT_TRUE(mConnected);
 }
diff --git a/media/mtransport/test/webrtcproxychannel_unittest.cpp b/media/mtransport/test/webrtcproxychannel_unittest.cpp
index edae5659d786..e957ae8bcb23 100644
--- a/media/mtransport/test/webrtcproxychannel_unittest.cpp
+++ b/media/mtransport/test/webrtcproxychannel_unittest.cpp
@@ -472,7 +472,7 @@ void FakeWebrtcTCPSocket::InvokeOnClose(nsresult aReason) {
 }
 
 void FakeWebrtcTCPSocket::InvokeOnConnected() {
-  mProxyCallbacks->OnConnected();
+  mProxyCallbacks->OnConnected(NS_LITERAL_CSTRING("http"));
 }
 
 void FakeWebrtcTCPSocket::InvokeOnRead(nsTArray<uint8_t>&& aReadData) {
@@ -494,7 +494,7 @@ class WebrtcTCPSocketTest : public MtransportTest {
 
   // WebrtcTCPSocketCallback forwards from mCallback
   void OnClose(nsresult aReason);
-  void OnConnected();
+  void OnConnected(const nsCString& aProxyType);
   void OnRead(nsTArray<uint8_t>&& aReadData);
 
   void SetUp() override;
@@ -534,7 +534,7 @@ class WebrtcTCPSocketTestCallback : public WebrtcTCPSocketCallback {
 
   // WebrtcTCPSocketCallback
   void OnClose(nsresult aReason) override;
-  void OnConnected() override;
+  void OnConnected(const nsCString& aProxyType) override;
   void OnRead(nsTArray<uint8_t>&& aReadData) override;
 
  protected:
@@ -566,7 +566,9 @@ void WebrtcTCPSocketTest::OnRead(nsTArray<uint8_t>&& aReadData) {
   AppendReadData(aReadData.Elements(), aReadData.Length());
 }
 
-void WebrtcTCPSocketTest::OnConnected() { mOnConnectedCalled = true; }
+void WebrtcTCPSocketTest::OnConnected(const nsCString& aProxyType) {
+  mOnConnectedCalled = true;
+}
 
 void WebrtcTCPSocketTest::OnClose(nsresult aReason) { mOnCloseCalled = true; }
 
@@ -614,7 +616,9 @@ void WebrtcTCPSocketTestCallback::OnClose(nsresult aReason) {
   mTest->OnClose(aReason);
 }
 
-void WebrtcTCPSocketTestCallback::OnConnected() { mTest->OnConnected(); }
+void WebrtcTCPSocketTestCallback::OnConnected(const nsCString& aProxyType) {
+  mTest->OnConnected(aProxyType);
+}
 
 void WebrtcTCPSocketTestCallback::OnRead(nsTArray<uint8_t>&& aReadData) {
   mTest->OnRead(std::move(aReadData));