--- a/netwerk/test/httpserver/httpd.js
+++ b/netwerk/test/httpserver/httpd.js
@@ -724,21 +724,16 @@ nsHttpServer.prototype =
     NS_ASSERT(this._connections[connection.number] === connection,
               "connection number mismatch?  " +
               this._connections[connection.number]);
     delete this._connections[connection.number];
 
     // Fire a pending server-stopped notification if it's our responsibility.
     if (!this._hasOpenConnections() && this._socketClosed)
       this._notifyStopped();
-    // Bug 508125: Add a GC here else we'll use gigabytes of memory running
-    // mochitests. We can't rely on xpcshell doing an automated GC, as that
-    // would interfere with testing GC stuff...
-    if (typeof gc === "function")
-      gc();
   },
 
   /**
    * Requests that the server be shut down when possible.
    */
   _requestQuit: function()
   {
     dumpn(">>> requesting a quit");