Looking for logging into the Firefox 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 site. After that you can login as usual with your login credentials.
https://support.mozilla.org/users/login
https://addons.mozilla.org/firefox/users/login
https://www.mozilla.org/ru/firefox/accounts/
https://support.mozilla.org/ru/kb/gde-hranyatsya-moi-loginy
https://support.mozilla.org/en-US/kb/access-mozilla-services-firefox-account
https://support.mozilla.org/en-US/kb/where-are-my-logins-stored
https://www.facebook.com/mozilla/
https://help.getpocket.com/article/1046-cant-save-to-pocket-in-firefox-asked-to-log-in-every-time
https://help.salesforce.com/HTViewSolution?id=000004607
https://support.docusign.com/en/articles/Troubleshooting-cached-login-credentials-in-Mozilla-Firefox
https://community.atlassian.com/t5/Trello-questions/Cannot-log-in-on-Firefox-57-0-Ubuntu/qaq-p/679868
https://stackoverflow.com/questions/51228872/firefox-view-source-shows-login-page
https://eid.belgium.be/en/faq/firefox-how-do-i-log