Bustage fix for bug 1146065.

toolkit/components/passwordmgr/LoginManagerContent.jsm

@@ -460,9 +460,9 @@ var LoginManagerContent = {
 
     if (!usernameField)
       log("(form -- no username field found)");
-
-    log("Username field id/name/value is: ", usernameField.id, " / ",
-        usernameField.name, " / ", usernameField.value);
+    else
+      log("Username field id/name/value is: ", usernameField.id, " / ",
+          usernameField.name, " / ", usernameField.value);
 
     // If we're not submitting a form (it's a page load), there are no
     // password field values for us to use for identifying fields. So,