Extension not detected
Install MetaMask or open this page in a browser where Rabby / Coinbase Wallet is enabled, then refresh and click Connect wallet.
Opened as a file?
Use http://localhost:8765 (or your host URL) — wallet extensions do not inject on file:// pages.
Request rejected
Wrong network
Connection uses eth_requestAccounts. Switch networks in your wallet after connecting — funding networks are in the FAQ.
Still stuck?
Read Get started or MetaMask Card support.