What is the MetaMask Chrome Extension?
The MetaMask Chrome Extension is a lightweight browser add-on that turns Chrome into a Web3-ready environment. It allows you to create or import wallets, store Ethereum and other EVM tokens, connect to decentralized apps (dApps), and sign transactions — all while keeping your private keys encrypted and stored locally on your device.
Key Features
- Non-custodial wallet: You control your keys and funds.
- dApp connectivity: Seamless integration with DeFi platforms, NFT marketplaces, and games.
- Token swaps: Built-in token exchange and custom token support.
- Network customization: Add custom RPCs like Polygon, BSC, Avalanche, and more.
- Hardware wallet support: Integrate Ledger or Trezor for extra security.
How to Install (Chrome)
- Open the Chrome Web Store.
- Search for MetaMask or visit metamask.io/download.
- Click Add to Chrome and confirm the installation.
- Pin the extension to your toolbar for quick access.
- Create a new wallet or import an existing one using your recovery phrase. Set a strong password.
How to Use
Click the MetaMask icon to open the popup. Connect to a dApp by clicking its Connect Wallet button, then approve the connection in MetaMask. For transactions, always review amounts, destination addresses, and gas fees before confirming.
Security Best Practices
- Only download MetaMask from metamask.io or the Chrome Web Store official listing.
- Never share your 12/24-word seed phrase. Store it offline in a safe place.
- Use hardware wallets (Ledger/Trezor) for large balances and integrate them with MetaMask.
- Double-check website URLs and permissions; revoke permissions you no longer use.
- Keep your browser/extensions updated and avoid suspicious links or popups.
Tip: Test new or unfamiliar dApps with a small transaction first.