I have the Mozilla foundation in high regard but this decision is nowhere near the quality standards I’d expect from a technology foundation/company. Saying Crypto has a bad eco footprint is outright wrong, sure Bitcoin and ETH and a number of other cryptocurrencies are PoW and therefore energy intensive, but on the other side you have platforms like Cardano and Algorand showing how you can do it much much better!
That Mozilla statement is unjustly labelling a whole sector, they should know better than doing that!
That Mozilla statement is unjustly labelling a whole sector, they should know better than doing that!