--- a/toolkit/modules/CertUtils.jsm
+++ b/toolkit/modules/CertUtils.jsm
@@ -170,17 +170,19 @@ this.checkCert =
   issuerCert = issuerCert.QueryInterface(Ci.nsIX509Cert3);
   var tokenNames = issuerCert.getAllTokenNames({});
 
   if (!tokenNames || !tokenNames.some(isBuiltinToken))
     throw new Ce(certNotBuiltInErr, Cr.NS_ERROR_ABORT);
 }
 
 function isBuiltinToken(tokenName) {
-  return tokenName == "Builtin Object Token";
+  return tokenName == "Builtin Object Token" ||
+         tokenName == "Default Trust" ||
+         tokenName == "System Trust";
 }
 
 /**
  * This class implements nsIBadCertListener.  Its job is to prevent "bad cert"
  * security dialogs from being shown to the user.  It is better to simply fail
  * if the certificate is bad. See bug 304286.
  *
  * @param  aAllowNonBuiltInCerts (optional)
