Firefox account issue
I have created an account 2 twice in the last week & verified my account then a few days later it tell me it can't sync & I that I don't have an account
- User Agent: Mozilla/5.0 (Android 4.4.2; Tablet; rv:43.0) Gecko/43.0 Firefox/43.0
Do you allow cookies in the one that gave you this error message?
Also when you change the email account the second time, both devices will need to remove the former account and add the new one.
I hope this helps.