This is a tad complicated, I hope you will be patient with me. I have a MOZILLA Firefox account that I can sign into with my TRUE EMAIL ADDRESS and password. Once signed in a Photo I previously used and the email address under the photo no longer exist. (photo is not the issue) There is nowhere in the settings to change the old email that is now nonexistent to my current one. There is a place to add a secondary email address but it says NO IT IS ALREADY IN USE. Duh, it is allowing me to sign in with it. I am grateful for that but I need that dead email gone and the one I sign in with to replace it altogether. Since the email under my photo was deleted by me through jt's server, outlook, it is now, at some point, available for someone in the www to make it their own. The problem with that is Tax INFORMATION, Financial INFORMATION & more on my identity could end up in someone else's hands. I am getting rid of it everywhere. FIRE FOX is making it impossible to get rid of it. I am asking this community for help to do this. Can someone please help me to fix this? Thank you in advance!