What is MetaMask?:
Metamask is a cryptowallet browser extension, and is compatible with Google Chrome. You can view their website here: https://metamask.io/
Detailed PDF:
https://cdn.xy.company/documents/MetaMask_Wallet_Instructions.pdf
Video Explanations:
Video from ConsenSys:
https://www.youtube.com/watch?time_continue=176&v=ZIGUC9JAAw8
XYO Video:
https://medium.com/xyonetwork/setting-up-a-metamask-wallet-for-your-coin-withdrawals-1879c5e0cb4b