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MetaMask is a browser extension designed to make accessing Ethereum’s Dapp ecosystem easier. It also serves as a wallet for holding ERC-20 tokens allowing users to access services built on the network

In brief

  • MetaMask is a browser plugin that serves as an Ethereum wallet.

  • Users can store Ether and other ERC-20 tokens in the MetaMask wallet.

  • The wallet can also be used to interact with decentralized applications, or dapps.

Popular decentralized application ( dapp) CryptoKitties crashed the Ethereum blockchain with 1.3 million transactions in December 2017. But since then, user numbers have dwindled into the hundreds.

For many users, dapps are just too difficult to use. MetaMask is hoping to change that, lowering the barrier of entry to the wonderful world of dapps and bringing the decentralized web to the mass market.

What is MetaMask?

MetaMask (which, like an editorially independent Decrypt, is funded by Ethereum incubator ConsenSys) is a browser plugin that serves as an Ethereum wallet, and is installed like any regular plugin. Once it’s installed, it allows users to store Ether and other ERC-20 tokens, enabling them to make transactions to any Ethereum address.

By connecting to Ethereum-based Dapps, users can spend their coins in games, stake tokens in gambling applications and trade them on decentralized exchanges. It also provides users with an entry point into the emerging world of decentralized finance, or DeFi, providing a way to access DeFi apps such as Compound and PoolTogether.

How to get started using MetaMask

Though it might seem complicated from the outset, MetaMask is one of the simpler Ethereum wallets and dapp browsers to use, and can be set up in a couple of minutes in most cases.

To use MetaMask, you will need either Chrome, a Chromium-based browser such as Brave, or Firefox.

First, you’ll need to download and install the official Metamask extension/addon for your browser; either the Google Chrome extension or the Firefox addon depending on your browser. For our guide, we’ll be using the Firefox version, but the steps are nearly identical for other browsers too.

Once installed, you should see the below splash screen. Click the ‘Get Started’ button to begin creating your Ethereum wallet using MetaMask.

On the next step, click the ‘Create a Wallet’ button.

You’ll then be asked if you want to help improve MetaMask. Click ‘No Thanks’ if this doesn’t interest you, otherwise click ‘I agree’.

Pick a password on the next step. This needs to be at least 8 characters long. We recommend using a completely unique password that hasn’t been used anywhere else, and contains a mixture of upper and lower case letters, symbols, and numbers.

Read and accept the Terms of Use, and click ‘Create’ once your password has been set.

MetaMask will then present you with your 12-word backup phrase. You’ll need to write this down in the same order displayed on your screen. This will be needed to recover your wallet should you ever lose access to your computer, and should be kept stored somewhere safe. Anybody who has access to your 12-word back phrase will be able to recover your funds, so keep it private.

Click ‘Next’ once you’ve written this down.

Confirm your backup phrase on the next screen by entering the words in the same order saved previously. Click ‘Confirm’ once done.

You have now almost completed the MetaMask setup process. Just click ‘All Done’ on the final page, and you will be automatically logged in to MetaMask. If you ever get logged out, you’ll be able to log back in again by clicking the icon added to your web browser (usually found next to the URL bar).

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