Some of the activities you described are by the Mozilla Foundation, not the Mozilla Corporation. The two have different sources of funding, so the Foundation's

Some of the activities you described are by the Mozilla Foundation, not the Mozilla Corporation. The two have different sources of funding, so the Foundation's "spending on NGOs and politics" doesn't have any bearing on the funds used on Firefox development. The split between the two exists so that one org doesn't have the constraints of a non-profit: the non-profit Foundation can take tax-deductible donations while the Corporations can do things that a tax-deductible charity can't. I'm not a fan of some of the Corporation's recent non-FF work (Pocket acquisition, Mullvad-based VPN, etc). But saying that they're expensive and take away from FF funding is inaccurate. These projects are intended to create new revenue streams for the Mozilla corporation. I think that Mozilla having to chase new revenue streams in questionable ways (like having a proprietary service, Pocket) in an indictment on the Web's complexity and how it takes billions of dollars to build a browser. Making ethical compromises to fund continued development is an extreme but real example of the consequences of software bloat.