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Metamask® Login Powered By GitBook Effortlessly manage your MetaMask wallet: Access via extension icon, view balances, send/receive Ethereum securely, explore

In order to enable dapps (decentralized applications) to access the blockchain, MetaMask needs to inject a Web3 JavaScript object into each page. By doing so, it will not change the website, but merely allows it to access the network. For a fuller explanation of this, see here.