Even if you believe Firefox is the only goal, though... Mozilla needs money to develop it. Despite all the technical effort that's gone into it in recent years, Firefox is still losing marketshare. Maybe there's some killer feature that will turn it around. But so far tracking protection doesn't seem to have done it, and there's not that many other features that Google can't copy. So if you still want Firefox to be useful in 10 years, there's a real chance it will be need to be subsidised by something like Mozilla VPN.
I started this discussion with the point that I’m not donating to Mozilla, because I don’t want my donations to go to their other projects. Mozilla is of course free to do with their resources what they want, it’s just that they should not be expecting my support in that case.
I personally prefer to fund established projects and developers with donations, I just don’t consider Mozilla very good at starting new projects. I want to fund and support Firefox and that’s it, and there’s currently no way to do so. And with that, comes my criticism of how they are using their resources that I can fund.
But it is set up exactly in the contrary manner, without much in terms of any guarantees about what the budgetary division will be leaving FireFox as the collector but not the recipient of the bulk of those funds. Imagine where FireFox would be if not for all those non-starter projects and products that drain resources make it to launch and then get axed quietly 3 months later.
This is exactly how I feel about Mozilla indeed. Their only relevance to me is their browser, I don’t care much about the rest. If a “privacy not included guide” is the best example of other value they add, this strongly confirms it from my point of view.