diff -pu a/nss/lib/ssl/ssl3con.c b/nss/lib/ssl/ssl3con.c
--- a/nss/lib/ssl/ssl3con.c	2014-01-17 19:00:52.843413560 -0800
+++ b/nss/lib/ssl/ssl3con.c	2014-01-17 19:01:36.374129696 -0800
@@ -11318,7 +11318,7 @@ ssl3_FinishHandshake(sslSocket * ss)
         ss->ssl3.hs.receivedNewSessionTicket = PR_FALSE;
     }
 
-    if (ss->ssl3.hs.cacheSID) {
+    if (ss->ssl3.hs.cacheSID && ss->sec.isServer) {
 	PORT_Assert(ss->sec.ci.sid->cached == never_cached);
 	(*ss->sec.cache)(ss->sec.ci.sid);
 	ss->ssl3.hs.cacheSID = PR_FALSE;
diff -pu a/nss/lib/ssl/ssl.h b/nss/lib/ssl/ssl.h
--- a/nss/lib/ssl/ssl.h	2014-01-17 19:00:52.843413560 -0800
+++ b/nss/lib/ssl/ssl.h	2014-01-17 19:01:36.374129696 -0800
@@ -892,6 +892,18 @@ SSL_IMPORT int SSL_DataPending(PRFileDes
 SSL_IMPORT SECStatus SSL_InvalidateSession(PRFileDesc *fd);
 
 /*
+** Cache the SSL session associated with fd, if it has not already been cached.
+*/
+SSL_IMPORT SECStatus SSL_CacheSession(PRFileDesc *fd);
+
+/*
+** Cache the SSL session associated with fd, if it has not already been cached.
+** This function may only be called when processing within a callback assigned
+** via SSL_HandshakeCallback
+*/
+SSL_IMPORT SECStatus SSL_CacheSessionUnlocked(PRFileDesc *fd);
+
+/*
 ** Return a SECItem containing the SSL session ID associated with the fd.
 */
 SSL_IMPORT SECItem *SSL_GetSessionID(PRFileDesc *fd);
diff -pu a/nss/lib/ssl/sslsecur.c b/nss/lib/ssl/sslsecur.c
--- a/nss/lib/ssl/sslsecur.c	2014-01-17 17:59:03.242109996 -0800
+++ b/nss/lib/ssl/sslsecur.c	2014-01-17 19:01:36.374129696 -0800
@@ -1469,6 +1469,49 @@ SSL_InvalidateSession(PRFileDesc *fd)
     return rv;
 }
 
+static void
+ssl3_CacheSessionUnlocked(sslSocket *ss)
+{
+    PORT_Assert(!ss->sec.isServer);
+
+    if (ss->ssl3.hs.cacheSID) {
+	ss->sec.cache(ss->sec.ci.sid);
+	ss->ssl3.hs.cacheSID = PR_FALSE;
+    }
+}
+
+SECStatus
+SSL_CacheSession(PRFileDesc *fd)
+{
+    sslSocket *   ss = ssl_FindSocket(fd);
+    SECStatus     rv = SECFailure;
+
+    if (ss) {
+	ssl_Get1stHandshakeLock(ss);
+	ssl_GetSSL3HandshakeLock(ss);
+
+	ssl3_CacheSessionUnlocked(ss);
+	rv = SECSuccess;
+
+	ssl_ReleaseSSL3HandshakeLock(ss);
+	ssl_Release1stHandshakeLock(ss);
+    }
+    return rv;
+}
+
+SECStatus
+SSL_CacheSessionUnlocked(PRFileDesc *fd)
+{
+    sslSocket *   ss = ssl_FindSocket(fd);
+    SECStatus     rv = SECFailure;
+
+    if (ss) {
+	ssl3_CacheSessionUnlocked(ss);
+	rv = SECSuccess;
+    }
+    return rv;
+}
+
 SECItem *
 SSL_GetSessionID(PRFileDesc *fd)
 {