Update: At last I forced the Add button (changing self.added = False into self.added = True) in /usr/share/pyshared/gwibber/microblog/util/facelib.py. Once the account was added I restored the code to the original value.
Update: At last I forced the Add button (changing self.added = False into self.added = True) in /usr/share/ pyshared/ gwibber/ microblog/ util/facelib. py. Once the account was added I restored the code to the original value.