MetaMask is a browser extension that serves as an Ethereum wallet and gateway to blockchain applications. It acts as a bridge between web browsers and the Ethereum blockchain, allowing users to manage their cryptocurrency assets and interact with decentralized applications (dApps) directly from their browser.
Key components:
Wallet functionality: Stores private keys securely and manages multiple accounts
Transaction signing: Signs transactions locally without exposing private keys
dApp connector: Injects Web3 provider into web pages for blockchain interaction
MetaMask works by creating a secure vault in the browser's local storage, encrypted with the user's password, and provides a Web3 provider object that dApps can use to request wallet operations.
Rewriting in plainer words…
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