While Firefox doesn't natively support Chromecast on desktop, there's a new third party tool called fx_cast, that adds Chromecast support to Firefox, on Windows, macOS and Linux.
fx_cast Adds Chromecast Support To Firefox
While Firefox doesn't natively support Chromecast on desktop, there's a new third party tool called fx_cast, that adds Chromecast support to Firefox, on Windows, macOS and Linux.