Looking for logging into the Facebook Developer Sign In site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Facebook Developer Sign In site. After that you can login as usual with your login credentials.
https://developers.facebook.com/docs/facebook-login/
https://developers.facebook.com/?locale=ja_JP
https://developers.facebook.com/products/account-creation
https://developers.facebook.com/docs/apps/
https://qiita.com/nightyknite/items/10ab1853581265ef4bd6
https://www.youtube.com/watch?v=gXux8b3wcYw
https://firebase.google.com/docs/auth/web/facebook-login?hl=ja
https://docs.microsoft.com/ja-jp/azure/app-service/configure-authentication-provider-facebook
https://www.oreilly.com/library/view/fbml-essentials/9780596519186/ch01s02.html
https://stackoverflow.com/questions/21775198/facebook-api-this-app-is-in-development-mode
https://soporte.easypromosapp.com/hc/en-us/articles/207884956-How-to-use-your-own-Facebook-Developers-application
https://meta.discourse.org/t/configuring-facebook-login-for-discourse/13394
https://developer.a-blogcms.jp/document/externalservice/entry-2562.html