It would help to say just what youve done and at what point you got stuck
Am I right in assuming you have used this camcorder on an older XP PC and it works, and that this may be a Vista specific issue
Digital 8, just like MiniDV uses Firewire and should be recognised once plugged into the PC via firewire.
Do you have firewire on your Vista?
If you do and the camcorder isnt seen once connected,, check that the firewire cable works by trying it on another PC
PS: Im not sure your thread title is going to get the help you want..FireFOX??? that is Mozilla isnt it

Ive just modified it for clarity