WebSite Enabling Facebook Login This Tip Shows You Visually and Step-by-step How-to Enable Facebook Login for a Web Site Domain. To Enable Facebook Login is Necessary to Set the Callback URL, nothing other that the Web Site Domain/SubDomain. First Enable or Login into the Facebook Developers Go to facebook developers Web Site facebook developers Choose or Add New App Click on Choose Platform Button Select WebSite Set the WebSite’s URL Push the Next Button And it’s Done ;)