Install MetaMask for Chrome or Firefox from the respective app store.
Select MetaMask from the extensions tab and Accept both Privacy and Terms and Conditions after carefully reading them. Then, you will be asked to create a password to encrypt your wallet storage:
MetaMask will generate a random 12-word mnemonic that you can use to restore your account at a later point in time. Save it somewhere safe and secret as this is the only way to regain access to your account:
Your account has now been successfully created. You can now ...
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