I use ghostery & abp & avoid facebook connect apps myself, but I recognize that I'm not an average consumer. I think many people will really like your application. In any event, keep in mind that the sample group here is tiny and not representative before overhaul the interface based on our advice. ;)
I might suggest making it clear what you do more quickly: "Automatically send gifts to Facebook friends on their birthday" or something. "Remember friends' special occasions and give personal gifts" is a bit vague, imo. am I supposed to remember them? Do I send the gift? What does this service do?