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Coinbase Wallet Extension® — Getting Started
Your web3 wallet, living right in the browser toolbar
The Coinbase Wallet extension is a self-custody crypto wallet for desktop browsers. It holds your keys on your own device, signs transactions only when you approve them, and connects you to thousands of decentralized apps without leaving the page you are on.
- Self-custody keys
- Multi-network
- dApp ready
4 stepsfrom install to first transaction
Freeto install — you only pay network fees
1 phrasethe only thing you must never share
The fundamentals
What the Coinbase Wallet extension actually is
A plain-English explanation of self-custody, browser wallets and what changes the moment you install one.
The Coinbase Wallet extension is a self-custody crypto wallet that lives inside your desktop browser. Instead of signing in to an exchange account, you add a small extension that creates and stores a wallet on your own machine. Your keys — the cryptographic strings that prove ownership — stay with you, and every transaction is approved by you, one at a time, from the extension window. Because it runs alongside the page, it can also talk to decentralized applications: trading venues, NFT marketplaces, lending protocols, bridges and games. Holding assets plus signing in to web3 apps is what makes a browser wallet the centre of most people's desktop setup. It supports Ethereum, Base and a broad set of EVM-compatible networks, with Solana also available, all reached from a single recovery phrase.
That word self-custody cuts both ways, and it is worth being honest about it. You are the bank. Nobody can freeze your balance, and nobody can reverse a mistaken payment either. There is no password reset, no support agent who can restore access, and no insurance policy behind a lost phrase. The trade-off for that responsibility is real control: the assets sit at an address only you can spend from, and the wallet software itself is free.
Why people install it
Most newcomers arrive because a site asked them to "connect a wallet". A browser wallet answers that request in two clicks, keeps a readable record of what you approved, and shows the true network cost before you sign. For anyone who spends their day in a desktop browser, it is simply the shortest path between an idea and a transaction.
Getting started
Install, secure, fund, connect
Four steps, roughly ten minutes, done properly once.
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01
Install from an official source
Add the extension from the official Coinbase website or its listing in the browser's own extension store — never from a search ad, a DM or a sponsored link. Before installing anything, check the publisher name and the number of users. Clone extensions are the most common way people are robbed.
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02
Create your wallet and back up the phrase
Open the extension, choose to create a new wallet, and set a strong local password. The setup then shows a twelve-word Secret Recovery Phrase. Write it on paper or metal, in order, and store it somewhere it cannot be photographed. It is shown once because it is the master key: it restores your wallet on any device, which is exactly why it must never touch a screen or a clipboard.
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03
Add funds before you need them
Copy your receiving address from the extension, confirm it matches on the sending side, and start with a small test amount. Buy with a card or bank transfer inside the wallet, or send from an exchange account. Keep a little of the network's native coin in reserve — Ethereum or Base fees are paid in ETH, and a wallet with zero ETH cannot move the tokens inside it.
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04
Connect to your first dApp
Visit a site that supports browser wallets and choose to connect. The extension opens, shows which account and network it will share, and waits for your approval. Read the request before you sign: the address, the amount, the fee and the network all appear in the popup. You can disconnect at any time from the wallet's connected-apps list.
Day-to-day use
What you can do with it
Everything below happens inside the extension, from the same wallet and the same recovery phrase.
Swap between assets
Exchange one token for another from the wallet itself, with the rate and network cost shown before you confirm.
Buy with card or bank
On-ramp fiat through a regulated provider without opening a separate exchange account or leaving the browser.
Collect NFTs
View, receive and display digital collectibles, with the option to hide spam airdrops you never asked for.
Connect to dApps
Sign in to DeFi, marketplaces and games, review each permission, and revoke access whenever you like.
Separate accounts
Run multiple accounts from one wallet so you can keep long-term holdings apart from the addresses you connect to sites.
Staying safe
Security habits worth keeping
Treat the recovery phrase as cash in a safe: paper or metal, two locations, never a screenshot, cloud note, password manager record or email draft. Verify every site address before you connect — one changed letter is the whole trick. Approve only the permissions a site genuinely needs, and revoke the rest once a task is finished, because an unlimited token approval given a year ago is still a live key to that token today. Keep your browser and the extension updated so fixes arrive on their own. Use a single browser profile for crypto work, so no stray extension can read the page you are signing on.
Finally, ignore urgency. No real supporter will ever DM you first, ask you to "validate" a wallet, or offer to migrate your funds for you — those are the opening lines of a scam, not support. When something feels rushed, close the tab and check the official site directly.
- Phrase offline, in two places
- Bookmark the official site
- Test with a small amount first
- Revoke approvals you no longer need
- Keep a little ETH for fees
- Never sign something you cannot read
Questions
Frequently asked questions
Short answers to the things people ask most often before their first transaction.
No. This is an independent informational guide, written to help newcomers understand how a self-custody browser wallet works. It is not affiliated with, endorsed by or operated by Coinbase. Always download wallet software from the official Coinbase website or the browser's own extension store, and never enter your recovery phrase on a website.
The wallet itself is free to install and use. You pay network fees (gas) whenever you send, swap or approve a transaction, and any fees charged by third-party providers you choose inside the wallet. Fees vary with network demand, so a quiet moment can cost a fraction of a busy one.
An exchange account is custodial: the platform holds the assets for you and can be required to freeze them. A wallet puts you in control — keys are generated and stored on your device and only you can approve transactions, which also means only you can lose access to them.
Nobody can restore it for you. There is no reset and no support team with a back door, because any such shortcut would be a shortcut for a thief as well. Without the phrase a wallet cannot be recreated, so write it down and store it safely before you add any funds.
Yes — restore the same wallet from your recovery phrase on each device. Type it only into the official extension. Never enter it on a website, in a chat, in an email or in a support form; no legitimate helper will ever ask for those twelve words.
Browser extensions are desktop software. On a phone you use the mobile wallet app instead, which covers the same self-custody basics and reaches mobile dApps through its built-in browser.
Ethereum, Base and a broad set of EVM-compatible networks, with Solana also supported. Coverage changes over time, so check the network list inside the extension and confirm the active chain before you sign — sending on the wrong network is a common and permanent mistake.
Back up your recovery phrase first, then remove it from the browser's extension manager. Removing the extension deletes the encrypted local copy of your keys, so an unrestorable wallet is an unusable one. To switch wallets, restore from the phrase on a fresh install.
Ready when you are
Install from the official source, write your recovery phrase down, and start with a small amount. The rest is a habit of reading before you sign.