''cdancamp [[#question-1268413|said]]'' <blockquote> do not know when or where my contacts list went, can anyone help </blockquote> Hello cdancamp, As Firefox doesn't have a contact list; you're probably talking about the contact list in your email account (?) In that case you should contact your email provider, or check their Support/Help page. (you could also do some "googling" first ..... ) Also see: https://support.mozilla.org/en-US/kb/problems-with-email-how-to-find-help In case you use Thunderbird : please, let us know and we can move this thread to Thunderbird support.