The Metamask® Extension is a cryptocurrency wallet and gateway to blockchain applications that runs as a browser extension. It allows users to manage their Ethereum-based assets, interact with decentralized applications (dApps), and securely execute transactions directly from their browser.
As a browser-based wallet, Metamask® eliminates the need to run a full Ethereum node while providing the same level of security and functionality. It serves as both a wallet for storing cryptocurrencies and a login mechanism for the decentralized web.
To begin using Metamask®, you'll need to download and install the extension from the official source:
After adding the Metamask® Extension to your browser (Chrome, Firefox, Brave, or Edge), you'll create a new wallet or import an existing one. The setup process includes generating a secret recovery phrase – crucial for wallet recovery.
The Metamask® login process is designed for security and convenience. Unlike traditional logins, Metamask® uses cryptographic proof instead of passwords for dApp authentication. To access a supported application:
This process creates a secure link between the dApp and your wallet without exposing private keys.
Yes, when downloaded from the official Chrome Web Store (https://chrome.google.com/webstore/detail/metamask/nkbihfbeogaeaoehlefnkodbefgpgknn), the Metamask® Extension is secure. Always verify you're installing the legitimate extension developed by ConsenSys.
You can restore your wallet using your secret recovery phrase (12-word mnemonic phrase). During the Metamask® login process, select "Import Wallet" and enter your phrase. Keep this phrase secure and never share it with anyone.
Yes, you can install the Metamask Wallet Extension on multiple browsers. However, you'll need to import your wallet using your recovery phrase on each installation, as wallet data is stored locally in each browser.
Yes, in addition to the browser extension, Metamask® offers mobile apps for iOS and Android devices. Your wallet can be synchronized between mobile and extension versions using your secret recovery phrase.
The term "Metamask Wallet" refers to the overall cryptocurrency wallet product, while "Metamask Extension" specifically describes the browser-based implementation of that wallet. The extension is one way to access your Metamask® Wallet.
Metamask® itself is free to download and use. However, blockchain transactions (sending crypto, swapping tokens, interacting with dApps) require gas fees paid to network validators, not to Metamask®.