Adobe has removed the DV and HDV capture firewire feature in Premiere Elements 13.
The last version that has this feature is Premiere Elements 12/12.1.
The following Adobe document suggests workaround for this situation in Premiere Elements 13.
There are several other programs that I mention for this capture.
One of them on Mac would be iMovie.
Please review. If any questions, please do not hesitate to ask.