After integrating facebook login with member mouse ,when I click "Sign in with facebook" button first time then I am entering facebook credentials and get login to website.But when I click on logout button and try to click on "Sign in with facebook" button again then I am automatically login to website without entering facebook credentials.
When I logout from website then session/cookie must be removed.
If I remove the browser cache or remove the session/cookie of browser then system is working fine.
That is after removing session/cookie of browser facebook login is asking for credentials(username/passeword).
But this process will work automatically when I logout the website .