It might not be possible to delete this account because you aren't able to answer the email to confirm you posses this email. Since you haven't finished setting up the account, there is no worry that data might have been uploaded to the server.

• https://support.mozilla.org/en-US/kb/forum-response-firefox-sync-verification-email-faq

What makes you think I’m not able to answer the email to confirm I posses this email? It is one of my own e-mail accounts but not the one I use for my Firefox account.

I did finish setting up the account and I really want it to be terminated. Please tell me how to terminate this account.

Hey there!

Please follow the steps instructed in the link to terminate your FF account :

https://support.mozilla.org/en-US/kb/how-do-i-delete-my-firefox-account

Hope I helped!

Kind regards,

Bithiah