While what you’re saying is factually correct, my biggest pet peeve is that Firefox is entirely owned and developed by the corporation. If I donate money to Mozilla, it ends up with the silly projects instead of the browser.
To me, this is a problem, and while it’s documented somewhere, it’s not nearly communicated well enough on their website when you’re actually making a donation. As a matter of fact, it’s sometimes even downright misleading.
As such, I don’t believe the corporate structure is a healthy one, and the organization(s) are not properly aligned in where the profit comes from, where they make the biggest impact in the world, and where the donations go to.