Looking for logging into the Firefox Manager 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 Manager site. After that you can login as usual with your login credentials.
https://support.mozilla.org/en-US/kb/password-manager-remember-delete-change-and-import
https://support.mozilla.org/el/kb/where-are-my-logins-stored
https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles
https://www.mozilla.org/en-US/firefox/features/password-manager/
https://addons.mozilla.org/el/firefox/addon/tab-session-manager/
https://addons.mozilla.org/firefox/users/login
https://support.mozilla.org/el/kb/fix-login-issues-on-websites-require-passwords
https://addons.mozilla.org/en-US/firefox/addon/multi-account-containers/
https://support.mozilla.org/questions/1196056
https://addons.mozilla.org/el/firefox/addon/lastpass-password-manager/
https://developer.mozilla.org/en-US/docs/Mozilla/Creating_a_login_manager_storage_module
https://support.mozilla.org/questions/985006
https://support.mozilla.org/questions/968560