Earlier quoted context omitted.
Firefox is open source. I do pay for it as a tool. Toolmakers also work out of desire to practice their craft. Many projects are written, not to “earn a living.”
True but Firefox is mainly written by people who want to earn a living. Much FOSS is actually written by people who are being paid to do it, How do you fund the producers of Firefox and the infrastructure needed to get it built and released. Currently the only way is that the sellers of the adverts you read give money to fund Firefox. Now if you paid for Firefox then they don't need to get money from advertisers. Sim…
Wikipedia doesn't fund itself by spying on you and selling the data. They ask for money.