First, the plague of Debian and the logjam breakers. Mozilla, like Debian, has many technical users with loud opinions and struggles to reach consensus. Debian suffers from this problem because it comes to consensus oh so very slowly - multiple competing packaging formats exist and hurt the community for decades. But, Mozilla has the worst result - "logjam breaker" executives come in, and, rather than pushing the technical leadership to make a reasonable technical decision based on the weighed factors, they break the logjam by encouraging the technical leaders to blindly imitate the competition. This problem is intractable - giving in to the Debianers means being mired in debate forever and making no or extremely slow progress; giving in to the suits means failing to innovate, becoming a clone of your competition, and eventually being forgotten. A true solution requires real technical leadership, something that's sorely lacking at Mozilla, or a different user base, which is not a possibility at Mozilla.
Second, the plague of Wikimedia. Non-technical leadership comes to dominate decisions about how to spending incoming donations from successful technical projects. Such leadership is often interested in hoping from the board of one non-profit to another. Much like Googlers are always interested in content for their next promotion form, such non profit executives are interested in bragging about the great projects they kicked off the ground. The results is a slew of failed and cancelled projects while the core project languishes.
Finally, the plague of social justice run amok. Most companies right now are on social justice kick and for the last few years. That's good; racism is bad, and tech could be a bit more welcoming. However, most companies understand where the lines are drawn. For example, Google executives don't release statements after employees die trashing the employee because of an underlying difference in personality and/or political views. Google also doesn't fire executives because of their political views or previous donations, when held privately, particularly when those political views are relatively common. Such actions have a chilling effect on recruitment and leads to technical talent that might otherwise have been interested in Mozilla (like myself) to permanently write it off.
I don't hold Mozilla to higher standards and I'm not mad about double speak. I'm mad that Mozilla is nasty, that is breaks well established liberal norms regarding political freedom, that it's executives waste my donations on resume lines for their next gig, and that it's technical leadership seems incapable of making balanced decisions other than imitation Google. But most of all, I'm mad that nobody at Mozilla can even see the problem (yourself included). Mozilla is deeply sick and needs to diagnose its own problems correctly, in order to begin remediating them. Until then, I'll regard it as a dying corporation and I'll look forward to the day when Mozilla finally dies and we can get started on the project of building a free web again by forking Chromium.