IIRC, the stated purpose of the formation of the foundation and corporation was to primarily fund the development of the/a browser product. Over the last 10 years, the corporation has taken in several billion dollars which should have been enough to fund a sizeable fraction of annual cash needs in perpetuity (i.e. don't spend it as you get it, invest it as various endowments/trusts do so that you have an annual revenue stream to fund the project on an ongoing basis) anticipating that the large cash payments from search engines weren't going to last forever.

Unfortunately, rather than doing that, it appears most of the money has been spent on various misadventures and expanding staff to consume the funds taken in which now apparently has to be scaled back. So now we get to read this blog post which reads like any number of VC-backed startups needing to pivot to find a business model. Mozilla has one, if it would just stop spending money going off on all these tangents and focus on what I suspect the vast majority of us want from it: the best possible browser. If we get to a point where browsers are no longer relevant, then frankly neither is Mozilla. It's shown minimal aptitude for things other than browsers, and supporting tech, which it unfortunately doesn't seem terribly interested in focusing on.