When Ghostery is enabled (it blocks stupid libraries trying to spy on users, e.g. Google, Facebook, Twitter, etc), the login feature cannot be used. This means that your login is dependent on third party tracking libraries. You should take a look at it, because most users are blocking just about everything these days. TypeError: gapi.signin is undefined
Hello PersianDude, i've installed Ghostery (v5.4.8.1) for Chromium (v44.0.2403.89), for me the standard login username + password, and the Google or Facebook login is still working properly. Which browser and Ghostery version are you running?