Hi! What data are you trying to see in your Firefox browser? Specifically, where does data come from? If you will like to see your bookmarks, preferences and passwords from your iPhone, Firefox Sync will not help you. Firefox Home, the app that allows you to bring your Firefox data to your iPhone only works in one direction: From other Firefox to iPhone and not the other way around. If I misunderstood your issue, it will be great if you can give us some additional info. Also, take in count that synchronizations, specially the first time, takes some time...so perhaps what you are seeing is just work in progress in your computer.