I have an email address that I used in Thunderbird for a long time. Now I want to reactivate that email to use once again in Thunderbird. It is shaman99@sbcglobal.net. I understand that ATT and yahoo have that browser domain and I want to know if there is some way that Firefox can help me to reactivate my sbcglobal.net email address/account. Please let me know if this can be done or how I should proceed to recover the use of that email address. Thank you.