Step 1: You go to the SkyPirl.net website, then choose to add polkadot-js extension
Step 2: A new window will appear select "Add to Firefox"
Step 3: click on polkadot{.js} and select "Understood, let me continue"
Step 4: Click "import account from pre-existing seed"
Step 5: Enter the secret 12 phrase and click "Next"
Step 6: You fill in information such as your account name and create a new password, then click "Add the account with the supplied seed"
Step 7: Reset browser again (F5)
Good luck
