WebMetaMask® Extension - Browser extension - webflow MetaMask is a browser extension that enables users to interact with Ethereum-based DApps directly from their web browser. It acts as a wallet, allowing you to manage your Ethereum assets and seamlessly engage with decentralized applications. MetaMask® Extension - Browser extension - webflow. Metamask is a browser extension for Google Chrome that allows users to manage their Ethereum-based assets and interact with dApps seamlessly.Key Features of Metamask: a. Wallet Management: Metamask allows users to store, send, and receive Ethereum and ERC-20 tokens securely. It generates a unique wallet address for each user and encrypts private keys locally, providing enhanced security.