Maybe there was a period, years ago, where decision of Mozilla to accept or not accept crypto somehow would influence its popularity. This time has long passed, and most people who deal with crypto couldn't care less about Mozilla. The only people who are affected by this decision are Mozilla project, who won't get the donations of people who wanted to donate in crypto. Since Mozilla now considers them a filthy, planet-destroying fraudsters, apparently, I guess it's for the best for both sides. But let's not overestimate how much this means overall. Which is - not a real lot.