Hi Sara! To change the primary email address on your account, you first need to have a secondary email address added to the account. This will be the future primary. When you have a secondary added and verified, you can make it the primary and (optionally) delete the old email address after it's bumped down to a secondary. This can all be done within the [https://accounts.firefox.com/settings Firefox Accounts setting page]. See the [[Change primary email address on Firefox Accounts]] page for more information. Hope this helps.