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Polkadot{.js} extension guide

Install Polkadot{.js} extension

Step 1

Go to, download and install the extension accordingly with your browser.

Step 2

Open the extension, and click Understood, let me continue.
Note: Without doing this, will not able to launch the extension

Add an account in Polkadot{.js} extension

Step 1

Click the "+" plus icon in the middle of the extension

Step 2

Write down your 12-word mnemonic seed and keep it in a safe place. This is extremely important! You will need the seed to recover the wallet later.
Click Next step if you are sure that you saved your seed

Step 3

Input name, password for your account. Please save your password in a safe place, too. It is used to import/export your account.
Click Add the account with the generated seed when you are done

Step 4

To backup your account, click three-dot on the right side of your account and choose Export Account. Then, input your password and click I want to export this account. It will download a JSON file. Please keep this JSON file secure. You will need it along with the password to import your accounts to the extension later.