I noticed that my firewire drives don't automount in gnome. In fact, I can't seem to mount them without having to authenticate like I can with USB drives.
Is there something special about firewire drives from USB drives? I just noticed this with F17 but honestly I don't know if I'd tried firewire drives under gnome til after my F17 update so it could have been this way with previous release.
I can go to nautilus and mount the drive but it asks for my password.
The udisks command can mount it without authentication though.