diff --git a/mozilla/network/module/nsINetService.h b/mozilla/network/module/nsINetService.h
index 180ba99f2c3..bef9356a563 100644
--- a/mozilla/network/module/nsINetService.h
+++ b/mozilla/network/module/nsINetService.h
@@ -251,6 +251,14 @@ struct nsINetService : public nsISupports
 	*/
      
 	NS_IMETHOD CreateSocketTransport(nsITransport **aTransport, PRUint32 aPortToUse, const char * aHostName) = 0;
+
+	/**
+	* Protocol connection pools should use this call into the service manager to produce
+	* a transport interface to a file based socket. You need to pass in the name of the file
+	* you want to associate with the socket transport
+	*/
+
+	NS_IMETHOD CreateFileSocketTransport(nsITransport **aTransport, const char * aFileName) = 0;
     
     NS_IMETHOD AreThereActiveConnections(void) = 0;
 };
diff --git a/mozilla/network/module/nsNetService.cpp b/mozilla/network/module/nsNetService.cpp
index aec30ab204b..a5733ee8ae4 100644
--- a/mozilla/network/module/nsNetService.cpp
+++ b/mozilla/network/module/nsNetService.cpp
@@ -1056,6 +1056,24 @@ NS_IMETHODIMP nsNetlibService::CreateSocketTransport(nsITransport **aTransport,
 	return NS_OK;
 }
 
+NS_IMETHODIMP nsNetlibService::CreateFileSocketTransport(nsITransport **aTransport, const char * aFileName)
+{
+	NS_PRECONDITION(aFileName, "You need to specify the file name of the file you wish to create a socket for");
+
+	nsSocketTransport *pNSSocketTransport = NULL;
+
+	NS_DEFINE_IID(kITransportIID, NS_ITRANSPORT_IID);
+
+	pNSSocketTransport = new nsSocketTransport(aFileName);
+	if (pNSSocketTransport->QueryInterface(kITransportIID, (void**)aTransport) != NS_OK) {
+    // then we're trying get a interface other than nsISupports and
+    // nsITransport
+    return NS_ERROR_FAILURE;
+	}
+ 
+	return NS_OK;
+}
+
 
 NS_IMETHODIMP
 nsNetlibService::AreThereActiveConnections()
diff --git a/mozilla/network/module/nsNetService.h b/mozilla/network/module/nsNetService.h
index 042448516c7..5b9eb9477ee 100644
--- a/mozilla/network/module/nsNetService.h
+++ b/mozilla/network/module/nsNetService.h
@@ -100,6 +100,8 @@ public:
 
 	NS_IMETHOD CreateSocketTransport(nsITransport **aTransport, PRUint32 aPortToUse, const char * aHostName);
 
+	NS_IMETHOD CreateFileSocketTransport(nsITransport **aTransport, const char * aFileName);
+
 protected:
     virtual ~nsNetlibService();