My primary address was ***@msn.com and you changed it to ***@yahoo.com and I cannot change it back and when I try to add a secondary password firefox does not send me the code,

My primary Password has always been ***@msn.com and you changed it to ***@yahoo.com. I want to change it back and when I try to add it as a secondary email I get a message that you are sending a code to that email and I never get it and when I try to add the ***@msn.com email it will not let me add it as it tells me it already exists I am getting frustrated with all the issue lately with Mozilla. It does not sync to my device anymore. If you cannot fix the issues I am leaving mozilla and going with another browser. I would like to speak with a real person about this and get help. *''censored by mod''