There was the debut of the voice commands in the Mozilla browser. Firefox Voice is currently out in beta and there will likely be a fuller version soon after fixing bugs and other functionality issues.
Firefox Voice acts as a voice assistant with an intelligent display inside the browser. Unlike a voice device, it does not have voice activation, at least for the moment, and is activated by clicking on the icon in the address bar. It is limited to the desktop version of the browser and for the moment it only works in English.