OK,
I've just spent about 4 hours researching the issue with the board not retaining persistent login after restarting Firefox. I hate to say this, but the problem doesn't occur in internet explorer... this has to be an issue with the domain config. of nikt.zog.net.au - my mate that maintains zog.net.au is currently on holiday in thailand, so I don't want to disturb him with admin work, and I need a domain management panel logon set up, since normally he just does the edits for me in shell.
For a demo of the issue on a vanilla phpbb3 gold, with a fresh database, click the link below:
http://nikt.zog.net.au/drugcrew/plugins/bb3If you tell it to remember logons in internet explorer, the logon will be maintained between sessions, meaning, you wont be logged out & next time you load your browser, you will still be logged in.
Unfortunately, it seems, this is not the case with Firefox.
I'm now going to try messing with domains to point to the ip on that test forum now and see if that helps, but I doubt it will.