The unavoidable problem is that things cost money. Everything Mozilla does costs money, from hosting their website to paying developers. If they are giving away the software free to users, where is the money going to come from? Previously (and I think currently) a lot of that money is coming from Google, but being beholden to that one company is not ideal. So Mozilla has to look for alternate income.

I can at least empathize with the shitty position they are in where they have to find a way to monetize enough to exist, without becoming just like Google.