Hey there,
Sorry you are having issues. The blog post was supposed to prevent this form happening! Are you sure you went through all the steps required to
create and configure your Facebook application, including adding the correct callback URL? Did you also enable Facebook authentication and properly copy your App ID and App Secret to your Firebase.
Also, what versions of Firebase, Angular, Ionic, and Cordova are you using?
If so, please let me know what version of Chrome you are using and I can help you track down the issue.
Jacob