I honestly don't know what the problem is, Ri. I've been leaving myself logged on to my computer (which is also a Mac with Firefox as my main browser) for months now, and it has never signed me in as anonymous. I don't know if it'll do that if I log out and log back in again. Then again, I'm not the one behind the admin/creator's seat and thus have no idea what goes on behind there (on a side note, I tried making my own forum once. It didn't turn out so well, so I abandoned it.)
The only suggestion I have is to try clearing all your cookies. If you've already tried that, then I'm afraid I can't help any further. I've never been much of a computer geek.
AOC's Character ArchiveCHAOS: WHERE GREAT DREAMS BEGIN...Before a great vision can become reality, there may be difficulty. Before a person begins a great endeavor, they may encounter chaos. As a new plant breaks the ground with great difficulty, foreshadowing the huge tree...so must we sometimes push against difficulty in bringing forth our dreams.
Out of chaos, brilliant stars are born.