I'm not sure what you're saying exactly? Many people from the community contribute freely to the FF codebase, and the Firefox project also employs paid enginee

I'm not sure what you're saying exactly? Many people from the community contribute freely to the FF codebase, and the Firefox project also employs paid engineers to work on the codebase. Funding to pay those engineers comes from Google. Donations to Mozilla do not go toward paying those engineers. I think it would be great if individuals who aren't in a position to write code for FF could contribute donations to a fund that pays FF engineers.