I need to open my account, but I can't this because I can't reset my password and show this massege Unable to deliver email

this is message show me

Please create a bugzilla.mozilla.org account and use this link to create a request.

This is when your account is locked and you do not have access to the email account you created this Firefox account in, or the email is no longer accessible. I would recommend making a backup of your local profile first and then creating a new Firefox account.

If there is still a problem, please feel free to reply to this thread and we can help you the best that we can.

Hi I open the account for this website but I can't use this website please tell me how can I use this website to solve this problem??