The key point is who defines what "opportunity" is and, most importantly, why. There are opportunities to build new features, or opportunities to fix what's bro

The key point is who defines what "opportunity" is and, most importantly, why. There are opportunities to build new features, or opportunities to fix what's broken. Do you really think that the guys as Apple/Google that pull all-nighters and work themselves to death to finish iOS/Android don't have "enough passion to fix problems"? Honestly, I believe their managers give new tasks the a higher priority and that there is a pervasive mentality among all the profession that these are "irrelevant" problems that everyone has become accustomed to put up with and, in addition, are boring to work on. Who is gonna make those "low hanging fruit" interesting for a volunteer to work? The pride on creating a mighty fine piece of software should do it. I actually DO try to attack all the user facing (annoying) bugs on my projects, always. I may or may not be successful at that, but I'll never use "we are much better than 15 years ago" as an excuse. And I'm certain you and I have both seen well designed and executed pieces of software, where care has been taken on the UX and have very few if any of these problems, so complexity isn't something that forces you to have annoying UX bugs. The bottom line is that I feel it's disrespectful to a user to tell him to put up with the annoying "life-wasting five minutes at a time" bugs, only because 60 years ago he would have been playing cards over candlelight instead of trying to sync his iTunes library. It's like starting to pierce people with a pin and when they complain say "be grateful this is not the medieval times, because the pin would be a broadsword and you'd be already dead." It's just using past progress to justify current mediocrity. We should accept that those bugs that affect UX are indeed very important, and not dismiss them. Have you even thought how much better things would be if people actually gave this a higher priority? About Mozilla, there are lots of things that went wrong, and not many of them were due to fixing UX annoying bugs.