I agree with that but I see 90% of the time people just complaining about the high salaries. As much as those salaries may seem ridiculous the Bay Area is a very competitive place and I do not see many competent execs taking a massive downgrade in compensation just because they may believe in Firefox on principal.

That being said poor performance is for sure something to criticize on - although to be fair we are talking about competing with some of the largest and most entrenched companies on earth - not an easy job.