Yes. Mozilla was originally only the non profit, but it was ruled that selling the search rights violated nonprofit status. So they paid a couple million in back taxes and had to spin off a corporate entity that's fully owned by the nonprofit.

Novo Norodisk has a similar corporate structure, being owned majority by the Novodisk Foundation[0]

[0]: https://finance.yahoo.com/news/novo-nordisks-unique-structur...

It's a "we want to sell something, but non-profits aren't allowed to do that" trick. And it means the for-profit subsidiary has to pay normal taxes.

OpenAI is structured the same way, so they can sell access to their models. At least until it switches to being entirely for-profit, if that is allowed to happen.

I guess what we need is a non-profit fork of Firefox that takes donations directly and focuses only on the browser.

To be honest, I'm pleasantly surprised. Thanks for the info.