Metamask®-@Extension - us - gitbook - us

MetaMask is an extension for accessing Ethereum enabled distributed applications, or "Dapps" in your normal Chrome browser! The extension injects the Ethereum web3 API …

It seems like you're referring to the MetaMask extension. MetaMask is a popular cryptocurrency wallet and browser extension that allows users to manage their Ethereum-based assets and interact with decentralized applications (dApps) on the Ethereum network. Here's some information about the MetaMask extension: