I don’t know what’s wrong. Cable, port, camera.. Please specify what adapter you use to connect firewire to a current computer that has no firewire input.
I am using a mid 2015 Imac with the latest operating system and FCPX 10.2.3. The computer doesn’t see the camera in “devices” and opening FCP to ” Import media >from camera” just gives me the Facetime camera. No other options in evidence. I note that all the discussions and threads about this are 5-6 years old and most likely outdated with regard to hardware and software.