looks like rendering adblockers extensions obsolete with manifest-v3 was not enough so now they try to implement DRM into the browser giving the ability to any website to refuse traffic to you if you don't run a complaint browser ( cough...firefox )
here is an article in hacker news since i'm sure they can explain this to you better than i.
and also some github docs
You can't legally donate to Firefox, as it is developed by a Corp (Mozilla Corp.). Donations go to Mozilla Foundation, which does... other things with you money. In other words, your money don't go towards FF development.
However in theory the more self sustaining the Foundation is, the less the Corp needs to support it.
I don't think it works like this. Anyway, your money, your choice.
I believe under US laws, it's the opposite. The more donations a nonprofit receives, the more money it can earn though for-profit subsidiaries. I.e. the more donations, the more money the foundation can take out of the corporation.
Ofc both are interested in a sustainable relationship though.
Good to know