FP1: local contacts can be addedFP2: only Gmail contacts
Not sure about “local” contacts, but I don’t use Gmail and only use owncloud (CalDav/CardDav) to sync calendar and contacts (and tasks, notes, firefox) and that works very nicely. I.e. it is not only Gmail and my contacts are also not synced to Gmail/Google (although I’m singed into my Google-account from the phone in general).
Cheers from Vienna,