Looking for logging into the Bad Ftb 1.2.3 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 Bad Ftb 1.2.3 site. After that you can login as usual with your login credentials.
https://forum.feed-the-beast.com/threads/failed-to-login-bad-login.34609/
https://stickypiston.co/account/knowledgebase/64/Failed-to-Login-Bad-Login-error.html
https://www.akliz.net/manage/knowledgebase/29/How-to-Fix-Connection-Lost-Failed-to-login-Bad-login.html
https://forum.myftb.de/t/bad-login-was-tun/12244
https://www.gutefrage.net/frage/minecraft-147-und-ftb-lite-keine-sound
https://www.gutefrage.net/frage/feed-the-beast-trident-2-haende
https://ftb.gamepedia.com/Server_Tools
https://www.commentcamarche.net/forum/affich-25248211-minecraft-bad-login
https://feed-the-beast.fandom.com/wiki/Feed_the_Beast_Launcher
http://greg0ree-ftb.blogspot.com/2014/04/updated-cracked-launcher-feed-beast-1.html
https://minecraft-server.eu/?lang=de
http://deals.lawrence.com/
https://www.660citynews.com/contests/