Mozilla is the “socially acceptable” face of Big Tech.
For example, Google and friends know you’d never “donate your voice” for whatever their next privacy eroding product is. So thank goodness they don’t have to ask you. Because an entity they invest ~ half a billion dollars into every year and which you trust (maybe it’s time to review that choice?) can ask you instead.
So Mozilla creates a voice dataset and licenses it liberally so any surveillance capitalist like Google, etc., can use it.