I am trying to remove my login details on firefox for my microsft account. Everytime I try i go to www.office.com or portal.office.com to log into my account the username for the account is always displayed. I have gone on the the privacy and setting and removed all cached data, removed history and cache when closing firefox. But everytime I go to the website to log onto my microsoft account the account user name remains. Is there a way of removing this information. I ahve also cleared auto.fill and disabled this within the about:config. Could anyone advise me how this can be done as I cannot seem to find anyother settings that I may have to change for this to be done! Thanks!