Due to the ongoing tussle between Google and Amazon as Amazon refused to host Google apps like Chromecast on Firestick; Google removed the YouTube app from Amazon App Store. However, this doesn’t mean you cannot access YouTube on Firestick. Simply, install the Firefox browser or Silk Browser from Amazon App Store for accessing YouTube on Firestick. On the other hand, by installing Kodi, you can stream YouTube by installing an add-on for the same.