Actually I missed setting the logging config to true the first time,
but let me tell you what happened since my last post:
1. I wondered about extension conflicts, so I created a new profile
and tried to install with no extensions. It didn't work, but I had
one extension (McAfee SiteAdvisor) that installed itself
automatically. I disabled it and installed FireBug. It worked! This
_did not_ require Vista Administrator permissions.
2. Thinking I had solved the problem and wanting my bookmarks, other
extensions, and other settings back, I deleted the new profile (oops!
read on!), disabled SiteAdvisor, and reinstalled FireBug. No dice!
So I disabled all my extensions in the original profile, and tried to
reinstall FireBug. Still no dice!
3. I decided to try a new profile again and see what I could do about
importing my original settings after installing FireBug. I repeated
the procedure from section 1, above, _and it didn't work_! I tried
with the error console open. Still nothing. I tried restarting with
the error console. Still nothing. Somewhere between the 8th and 12th
reinstall/restart FF cycle, as I tried minor variations in my
procedure, it worked again.
4. This time I didn't delete the profile with FireBug, but I went
back to my original profile, disabled all the extensions, then
repeatedly attempted to reinstall FireBug. Again, it worked after a
dozen or so attempts. I reenabled the other extensions and everything
still works! I went back and deleted the FireBug-only profile.
Anyhow, I'm up and running now, but I'm willing to try and get a log
of a failed install for your benefit (and maybe mine, next upgrade).
I created a new profile, set the extensions.logging.enabled key to
true as you suggested, then ran the install, and the error console
remained blank. I tried it twice and also checked the console after a
FF restart. I had the "Show All" filter selected each time.
I'll keep trying to get a log or whatever if you have any more
suggestions. FireBug is the only extension I have had any sort of
problems with (out of about 6), so I think this must be some sort of
FF interaction specific to FireBug.
Thanks again,
Derek