This tutorial will help you to auto-renew your domain names with FranceDNS
Log on Your Account section Domain Names" >> "Domain Management". Pick one domain and select "Autorenewal feature" in the scrolling menu Domain Name Management.
Auto Renewal Feature
1. Pick the domain you want to auto renew in the list
2. Open the scrolling menu "Domain name management" and choose "Autorenewal Feature"
3. Click ON then <OK>
The auto renew triggers seven days before the expiration date, the account must have credits to perform the operation. (cf. Credit your account)