Mozilla bugzilla has reached bug id 800000. Mozilla typically file a bug for every actionable item, not just defects; the number of non-bogus, non-duplicate, non-feature-request, non-tracking-bug, and non-firefox-bugs (website, thunderbird, all other products since inception) will be much, much fewer.
Yes, this. There have been 800,000 bugs filed for all groups within Mozilla. We use bugzilla for managing projects and tasks (ex: a request for the Firefox 8th birthday cake graphic in the blog post). It's not just for tracking Firefox bugs. We use it for just about everything.