Tất cả các câu trả lời (1)
Sorry. Sometimes something slips thru the cracks.
https://support.mozilla.org/questions/1175659 Hi trying to change my email but I am not getting the make primary box
https://support.mozilla.org/questions/1172063 No link on sent email to sync
These are about e-mail or sync. Only the upper-level people can help. I will call for help.