Coinbase Wallet Extension — Browser Web3 Wallet

What Is Coinbase Wallet Extension?

The **Coinbase Wallet Extension** is a browser‑based, non‑custodial wallet that allows you to manage crypto assets, NFTs, and interact with decentralized applications (dApps) directly from your browser. You retain full control of your private keys—Coinbase never has access to them. :contentReference[oaicite:0]{index=0}

Unlike Coinbase (the exchange), which is custodial, the extension is designed for Web3 users who want autonomy, security, and direct interaction with decentralized protocols. :contentReference[oaicite:1]{index=1}

The extension supports Ethereum and other EVM-compatible chains, NFT integration, token swap, and synchronization with the Coinbase Wallet mobile app. :contentReference[oaicite:2]{index=2}

Key Features & Advantages

Non‑Custodial Control: You hold your private keys locally—Coinbase does not control your funds. :contentReference[oaicite:3]{index=3}
Multi-Chain / Network Support: Supports Ethereum, Polygon, BNB Chain, Avalanche and other EVM networks. :contentReference[oaicite:4]{index=4}
dApp Integration: Seamlessly connect to DeFi, NFT, and Web3 apps like Uniswap, OpenSea, Aave, Compound, etc. :contentReference[oaicite:5]{index=5}
Token Swaps: Swap supported tokens directly within the extension interface. :contentReference[oaicite:6]{index=6}
NFT Support: Store, view, send, and receive NFTs (ERC‑721 / ERC‑1155) in supported networks. :contentReference[oaicite:7]{index=7}
Sync with Mobile: Link your Coinbase Wallet mobile app with the extension for consistent view and access across devices. :contentReference[oaicite:8]{index=8}
Import / Export Wallets: You can import existing wallets via 12-word recovery phrases (e.g. from MetaMask, Trust Wallet) or export your wallet for backup. :contentReference[oaicite:9]{index=9}
Ledger Hardware Support: The extension supports integration with Ledger hardware devices for extra security. :contentReference[oaicite:10]{index=10}
Transaction Previews & Safety: Shows previews of smart contract interactions to help prevent phishing or malicious approvals. :contentReference[oaicite:11]{index=11}

How to Install & Use

Install from Official Source: Add the Coinbase Wallet Extension from the Chrome Web Store (or other Chromium-based browser). :contentReference[oaicite:12]{index=12}
Create or Import Wallet: Choose **Create New Wallet** or **Import Existing Wallet** using your 12-word recovery phrase. :contentReference[oaicite:13]{index=13}
Backup Recovery Phrase Securely: Write it down and store it offline—this is the only way to restore your wallet. :contentReference[oaicite:14]{index=14}
Set Password & Username: You’ll be asked to set a password for extension access and optionally claim a username. :contentReference[oaicite:15]{index=15}
Sync with Mobile (Optional): Connect your mobile Coinbase Wallet to the extension for seamless cross-device usage. :contentReference[oaicite:16]{index=16}
Add / Fund the Wallet: Use “Receive” to copy your address and fund from exchange or another wallet. :contentReference[oaicite:17]{index=17}
Use dApps or Swap / Send / Receive: When you visit a dApp, click “Connect Wallet” and approve via the extension. For token transactions, review and confirm in extension. :contentReference[oaicite:18]{index=18}

Go to FAQ →

Security & Best Practices

Never share your recovery phrase: If anyone gains access to those 12 words, they control your wallet.
Use a strong extension password: This helps prevent local access if your browser is compromised.
Verify dApp connections: Always check the origin and content when a dApp requests permission to connect or transact.
Beware of phishing or fake extensions: Some users report installing fake “Coinbase Wallet” extensions that steal funds. :contentReference[oaicite:19]{index=19}
Lock when not in use: Close or lock the extension if leaving your computer unattended.
Keep browser & extension updated: Security patches and improvements are rolled out regularly.
Be careful with balance mismatches: Some users have reported discrepancies between app and extension balances. :contentReference[oaicite:20]{index=20}
Limit permissions: Only approve necessary permissions to dApps; don’t grant blanket approvals.

Frequently Asked Questions (FAQ)

Do I need a Coinbase.com account to use this extension?

No. The Coinbase Wallet Extension is independent and non-custodial—you do not need a Coinbase exchange account. :contentReference[oaicite:21]{index=21}

Which browsers support it?

It works on Chromium-based browsers such as Chrome, Brave, Edge, etc. :contentReference[oaicite:22]{index=22}

Can I import MetaMask or Trust Wallet?

Yes — you can import existing wallets using their recovery phrase (12 words). :contentReference[oaicite:23]{index=23}

Is it safe to enter my recovery phrase?

Only when restoring your wallet in a trusted interface. Never enter your phrase into unknown or suspicious sites or extensions—some fake extensions have asked for them and stolen funds. :contentReference[oaicite:24]{index=24}

Why does my mobile and extension balance differ?

Some users report sync delays or missing transactions between extension vs mobile. :contentReference[oaicite:25]{index=25}

Does the extension support NFTs?

Yes — it supports ERC‑721 and ERC‑1155 tokens, enabling NFT viewing and transfers on supported networks. :contentReference[oaicite:26]{index=26}

Can I use Ledger hardware with it?

Yes — the extension supports Ledger integration for added security when signing transactions. :contentReference[oaicite:27]{index=27}

What do I do if extension shows “site might be unsafe”?

That behavior has been reported by users when browser flags or anomalies trigger warnings. Some resolved by reinstalling the extension or clearing browser cache. :contentReference[oaicite:28]{index=28}