diff -up curl-7.18.2/lib/nss.c.nssproxy curl-7.18.2/lib/nss.c
--- curl-7.18.2/lib/nss.c.nssproxy	2008-05-26 17:02:49.000000000 +0200
+++ curl-7.18.2/lib/nss.c	2008-06-18 07:59:52.000000000 +0200
@@ -804,6 +804,9 @@ CURLcode Curl_nss_connect(struct connect
 
   curlerr = CURLE_SSL_CONNECT_ERROR;
 
+  if (connssl->state == ssl_connection_complete)
+    return CURLE_OK;
+
   /* FIXME. NSS doesn't support multiple databases open at the same time. */
   if(!initialized) {
     initialized = 1;