seem to be having a great time going back and forth. For what it's worth I don't think the bug report that Michael filed is very useful. There really isn't anything in there that the mozilla people can work on. Mozilla certainly does crash from time to time. Whenever I find something that makes it crash consistently, I file a bug, so that it can get fixed, and maybe I can do whatever it is that I was trying do. However, you talk about "random crashes". Not only are those the most annoying, but they're nearly impossible to debug. If you've got something that folks can actually investigate and fix, great, bitch and moan that nobody is working on it.
MichaelCrawford also complains of "UI bugs that make it unpleasant to use." What bugs are these? I've filed the UI bugs that I've found. If you're finding ones that are unpleasant, look for them in bugzilla (the query page is scary at first glance, but not so bad if you take your time), and add yourself to the 'cc' list, so that you can get notified when they get fixed. If you can't find them in bugzilla, file them, so that folks know where their UI sucks. Without this, it's not going to get any better. You can't claim that you don't know what the bugs are if you find that they make it "unpleasant" to use. Even if you don't have a suggestion for making it better, file that you don't like the current behaviour.
As for movement's posts (not his initial reply via bugzilla), well, at the very least, their tone -sucks-. This is not how you talk to people who care enough to file a bug report. It's not how you encourage people to keep contributing to your project (code is NOT the only contribution possible).
Sorry, but that sort of thing just ticks me off, and it was the top two entries at recentlog, so it HAD to be replied to. More interesting stuff later, really! :)