I only have one decide to sing up on how can I complete my signup
I don't have but one device am I out of luck
Additional System Details
- User Agent: Mozilla/5.0 (Android 9; Mobile; rv:68.0) Gecko/68.0 Firefox/68.0
Firefox Sync and a Firefox Account is designed to work across multiple devices. Firefox for Android will work fine on one device as a web browser without a second device to sync it to.