[Vimperator] Help page displays every time I load Firefox

[Joe Holloway]

It seems like I have a setting enabled or some add-on installed that
is causing Vimperator (0.5.3) to display its help page every time I
run Firefox.  This happens on multiple machines, so whatever is
causing it is consistent.  I know that Vimperator saves the session by
default, but even when I exit with :qa I still get the Help page in a
new tab the next time I open Firefox.  This has been happening since I
installed Vimperator a couple months ago, but it just now got on my
nerves enough to try to hunt down a way to stop it (patience is a
quality one must have to learn Vim and then seek to use the same key
bindings in their browser ;) ).  I've scoured the help page for a
setting and searched the mailing list but haven't uncovered anything.
Before I go to the trouble of starting from a fresh install to see if
I can narrow it down, I just want to make sure I'm not missing
something obvious. A) Is this default behavior? B) If not, anyone else
seeing this?

Thanks,
Joe