This guide explains how to install, set up, and use the Coinbase browser extension as a secure wallet and trading interface. It covers core security practices, permission hygiene, transaction verification, and troubleshooting tips.
The Coinbase browser extension acts as a lightweight wallet that lets you manage addresses, sign transactions, and interact with decentralized applications (dApps). It provides a bridge between your browser and the blockchain while offering features intended to simplify swaps, token management, and account connectivity. The extension keeps your private keys encrypted locally and exposes functionality only when you approve actions.
Install the extension from your browser's official extension store. After installation, create a new wallet or import an existing one using the recovery phrase. When creating a new wallet, pick a strong, unique password to encrypt your keys locally—this password is only for the device, not a remote login. Carefully record the recovery phrase on paper; never store it in plaintext files, screenshots, or cloud services.
The extension will ask for permissions to access sites you visit and to interact with specific web pages requesting wallet access. Limit permissions to sites you trust. Avoid granting broad or indefinite access where possible. Regularly review the extension's permission list in your browser settings and remove sites you no longer use or trust.
When a dApp or site requests a transaction, the extension will show a popup for you to confirm the details. Verify the recipient address, network, and amount on the popup before approving. If the extension displays a URL or domain, confirm it matches the site you intend to use. When in doubt, decline the request and check the details directly in the dApp or with offline tools.
Protect the recovery phrase as the highest-priority secret. Use a hardware wallet for large balances—connect it to the extension where supported so keys never leave the hardware device. Keep your browser and operating system up to date and disable browser extensions you do not need; malicious or poorly maintained extensions can attempt to intercept wallet interactions. Use separate browser profiles for high-value accounts to reduce cross-site contamination.
If the extension fails to connect, try restarting the browser or disabling other extensions that hook into web pages. If a transaction appears stuck, check the network fees and the transaction status on a blockchain explorer. Do not enter your recovery phrase into any website or extension — any request for the full phrase is a red flag. If you suspect compromise, move funds to a new wallet and secure your recovery phrase in a safe location.
Test unfamiliar dApps with a small amount first. Keep a minimal token balance in the browser-based wallet and store the bulk of assets in a hardware wallet. Periodically export a list of addresses and balances for offline record-keeping, and use built-in features to lock the extension when idle.
This guide is an independent walkthrough designed to help users understand the Coinbase browser extension and general wallet safety practices. It is not an official Coinbase document and should not be used as a substitute for official support or documentation. Always verify software sources and instructions with verified channels. The author assumes no liability for losses arising from user error, device compromise, phishing, or use of third-party services.