MetaMask is an extension for accessing Ethereum enabled distributed applications, or "Dapps" in your normal Chrome browser! The extension injects the Ethereum web3 API into every website's javascript context, so that dapps can read from the blockchain. MetaMask also lets the user create and manage their own identities, so when a Dapp. MetaMask extension is an interpreter, a tour guide, a passport (or identification), and a secure pocket, all in one. Through it, you can interact with Ethereum-compatible blockchains in a user-friendly way, working with your browser.