Hi, do you mean you want to change your Firefox account email address? If so, please see [[Change primary email address on Firefox Accounts]]. (You need to first add your new address, then you can make it your primary address.) This is a public forum so to prevent spam emails you are recommended to delete personal information from your original post. ''If your question is resolved by this or another answer, please help other users by marking the best reply as Solved. Thank you!''