Mozilla is a small company
I’m surprised that people consider a ~2000-person company that revenues about a half billion a year to be “small”. Mozilla is a profit-driven corporation, far separated from the vision of the hobbyist coders who founded it decades ago. The only reason they’re shutting down their Mastodon server is because it’s not making them money, not because they lack the resources to support it.
Mozilla Foundation (the non-profit) and Mozilla Corporation (the for-profit) are two different entities under the Mozilla umbrella, so their staffing may be reported differently depending where you look and how they’re counting it.