Step 1: You can install Metamask here: metamask.io
Step 2: Click “Add to Chrome” to Install MetaMask as Google Chrome extension.
Step 3: Click “Add Extension” to confirm and MetaMask will be added
You can see that MetaMask is added by the little fox logo that shows up on the top right corner
Part 2: Creating a wallet
Step 1: Click on the Metamask logo.
Step 2: Read and agree to the MetaMask terms and Conditions
Step 3: Click “Create a new vault”, or “Create new wallet”. This depends on your browser.
Step 4: Enter a strong password and click “OK”
Step 5: Metamask will now show you your seed. It is very important that you copy and store those 12 worlds, without them you cannot restore your wallet.
Your account is now created! It’s possible that 1 Ether shows up on your balance. That’s because you’re on the testnet.
Step 6: Choose “Main Ethereum Network”
Step 7: MetaMask will now ask you for the password. Type it in and click “Unlock”
