These pages are painful to read. I would of thought the Mozillia crowd would have had a large overlap into bitcoin. But looks like I am wrong.
As of April 2022, the Mozilla Foundation is no longer accepting proof-of-work cryptocurrencies such as Bitcoin. See: Foundation/Cryptocurrency_Donations for more details. The remainder of this page has some historical information for 2021 and earlier. If you have questions, contact us at donate@mozilla.org.
Over the course of Q2, our fundraising team has looked into implementing a policy that would see us only accept proof-of-stake cryptocurrencies. At this time, our vendor doesn’t offer a service that distinguishes between types of cryptocurrencies. Coupling that with the increased volatility, we’ve made the decision to continue to hold on accepting any cryptocurrencies until further notice.
Solution:
But to my surprise Mozilla org doesn't accept bitcoin: