Right now my parent is getting downvoted but I think that there's a great truth in this comment:

A lack of focus generally hurts an organizations legitimacy in the eyes of it's donors.

Increasing the quality of a countries national elections isn't a goal I'd immediately assume to be part of Mozillas mission, so I'd be disappointed about such a project.

They could go the more transparent route and create a second organization for funding things their management likes.

... but I assume that such an organization would probably have some funding problems.

I've heard that you can't even donate any money for Firefox. All donated money are going to other projects.

AFAIK there does not seem to be a way to donate to rust development for the same reasons.

Maybe Mozilla should allow donors to specify the project they'd like to contribute to?

That would give them additional feedback on how the community evaluates their programmatic direction.

Sort of similar reasons; while this is true, it’s also that we aren’t sure how we’d allocate that money if we got it. Discussions about a possible foundation for Rust are ongoing, and these kinds of questions are a big part of why that hasn’t happened yet.

Part of the reason for that, I think, is that Firefox development is done by the Corporation, rather than the Foundation. The Corporation's can have far bigger income streams (i.e. the search engine deal), so it makes sense to make that responsible for the development of Firefox - even though that means you cannot donate to it.

Just to be clear:

I didn't want to imply anything political and the given example of improving elections isn't really a left- or right wing thing.

It's just hard for donors to understand how such a project might relate to the Mozilla brand.

Just to give a (hopefully) completely nonpolitical example:

If they would start to collect art with donor money it would arguably delute their brand in a comparable manner.

Yes, this is the reason I would never donate to Mozilla. They do way too many unrelated things. I only donate to smaller more targeted projects.