i have proplem without reply the problem is my users doesn't able to login

[Mahmoud Khedr]

i have proplem without reply the problem is my facebook users doesn't able to login this is [url_hidden] i added ssl certificate to my site iam facing problem login with Facebook now when you click on sign up by face it redirect you to Facebook and doesn't return you back to my website and when you click login by face book it doesn't open anything doesn't work completely so please help