MetaMask Wallet is a cryptocurrency wallet available as a browser extension for Chrome, Firefox, Opera and Brave. Thе wallet serves as a connection between your browser and the Ethereum blockchain. Crypto.com Log in: The best place to buy Bitcoin, Ethereum, and 250+ altcoins *Terms and Conditions apply. Join 70M+ users buying and selling 250+ cryptocurrencies at true cost Spend with the Crypto.com Visa Card