Metamask wallet extension | Metamask wallet extension is a browser-based cryptocurrency wallet that allows users to securely store, manage, and interact with Ethereum-based tokens and decentralized applications (dApps) directly from their web browser. Metamask Chrome Extension | Metamask Chrome Extension is a cryptocurrency wallet and decentralized application (dApp) browser extension for the Google Chrome web browser. It allows users to manage their Ethereum-based assets, interact with dApps, and securely store private keys.