MetaMask Extension is a browser plugin and mobile app that serves as a digital wallet for managing Ethereum-based assets and interacting with decentralized applications (DApps) directly from your web browser or mobile device. To set up and use the MetaMask wallet, follow these steps:

Install MetaMask: Visit the official MetaMask website or browser extension store to download and install the MetaMask Extension on your preferred browser or mobile device.
Create a Wallet: Launch MetaMask and follow the on-screen prompts to set up a new wallet. This involves creating a strong password and generating a unique seed phrase, which serves as a backup for your wallet.
Fund Your Wallet: Once your wallet is set up, you can fund it by transferring Ethereum or ERC-20 tokens from another wallet or exchange.
Interact with DApps: Use MetaMask to securely access and interact with various decentralized applications on the Ethereum network, such as decentralized exchanges, lending platforms, and games.
By following these steps, you can set up and use MetaMask Extension to securely store and manage your Ethereum-based assets while exploring the world of decentralized finance and blockchain