Looking for logging into the Firefox Phpmyadmin Problem 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 Firefox Phpmyadmin Problem site. After that you can login as usual with your login credentials.
https://bugzilla.mozilla.org/show_bug.cgi?id=518734
https://stackoverflow.com/questions/28425901/phpmyadmin-does-not-open-in-mozilla-but-work-in-chromium-browser
http://forums.mozillazine.org/viewtopic.php?f=7&t=393185
https://superuser.com/questions/661241/login-not-working-with-specific-browser?rq=1
https://serverfault.com/questions/335396/login-with-phpmyadmin-only-works-under-firefox-no-error-messages-generated
https://serverfault.com/a/335401
https://webmasters.stackexchange.com/questions/23738/phpmyadmin-keeps-redirecting-to-login-screen
https://www.camp-firefox.de/forum/viewtopic.php?t=20490
http://docs.phpmyadmin.net/de/latest/faq.html
https://www.drupal.org/forum/support/post-installation/2010-11-15/login-not-working-in-ie-and-chrome-fine-in-firefox
https://media.readthedocs.org/pdf/phpmyadmin-german/latest/phpmyadmin-german.pdf
https://service.startsmarthome.de/de/faq/loginprobleme-bei-mozilla-firefox
https://www.drupal.org/forum/support/post-installation/2014-12-27/solved-new-site-admin-login-you-are-not-authorized-to