Metamask® Extension® - Browser extension - GitBook - us

To learn how to contribute to the MetaMask project itself, visit our Internal Docs. Building locally. Install Node.js version 18. If you are using nvm (recommended) running nvm use will automatically

MetaMask Extension

MetaMask is a browser extension that serves as a cryptocurrency wallet and a gateway to decentralized applications (DApps) built on blockchain platforms like Ethereum. The extension allows users to interact with the blockchain directly from their web browser, providing a user-friendly interface for managing digital assets and engaging with the decentralized web.

Key Features:

  1. Wallet Management:

    • Users can securely store and manage their Ethereum (ETH) and other compatible tokens directly in the MetaMask wallet.

  2. Decentralized Application (DApp) Support:

    • MetaMask enables users to interact with various decentralized applications, from decentralized finance (DeFi) platforms to NFT marketplaces.

  3. Secure Transactions:

    • The extension allows users to send and receive cryptocurrency securely, and it integrates with hardware wallets for added security.

  4. Account Recovery:

    • During the setup, users are provided with a unique seed phrase. This seed phrase acts as a backup and can be used to recover the wallet in case of loss or device change.

  5. Privacy and Security:

    • MetaMask prioritizes user privacy and security, providing users with control over their private keys and sensitive information.

  6. Cross-Browser Compatibility:

    • MetaMask is available as an extension for popular web browsers such as Chrome, Firefox, and Brave, making it accessible to a broad user base.

  7. Network Customization:

    • Users can switch between different Ethereum networks (Mainnet, Testnets) to test and interact with applications in different environments.

MetaMask plays a crucial role in facilitating the adoption of blockchain technology and decentralized applications by providing a seamless and secure interface for users to explore the decentralized web.

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