Coinbase Wallet Extension: Frequently Asked Questions

It is the desktop browser version of Coinbase Wallet — a self-custody crypto wallet that runs as an add-on inside your browser. You can hold, send and receive tokens, swap between assets, view NFTs, and connect to Web3 apps (dApps) that ask for a wallet connection, without leaving the page you are browsing.

Self-custody is the important part: the wallet's private keys are generated and stored on your own device, encrypted behind the password you set. Coinbase does not hold those keys and cannot move, freeze or recover the assets inside the wallet.

No. A Coinbase account is a custodial exchange account where the company holds the assets on your behalf. Coinbase Wallet is a separate, self-custody product: you hold the keys, and connecting the two is optional.

You can install the extension and use it without ever opening a Coinbase account. A Coinbase account only becomes relevant for things like buying crypto with a card or bank transfer in supported regions.

The wallet itself is free to download and use. The costs that appear come from the networks and the services you choose:

• Network fees (gas) are paid to the blockchain for every transaction — they vary with network congestion.
• Swap and bridge fees may be charged by the liquidity provider or aggregator that fills the trade.
• Card or bank purchases can include a provider fee, shown before you confirm.

Always check the fee summary on the confirmation screen — the wallet shows it before anything is signed.

Because it is a browser add-on, it works on desktop browsers. Chromium-based browsers such as Chrome, Brave and Microsoft Edge can install it from the official Chrome Web Store listing, and there is an official build for Firefox. On phones, browser extensions are not supported at all — that is what the Coinbase Wallet mobile app is for (iOS and Android).

Store policies, browser support and regional availability change; confirm the current listing on the official Coinbase Wallet page or your browser's own extension gallery before installing.

Only ever install from a source you reached yourself: the official Coinbase Wallet page, or the official gallery listing for your browser (Chrome Web Store, Firefox Add-ons). Never install an extension from a link in an email, a direct message, a social post, a Telegram group or a "sponsored" search result — those are the most common way fake wallets are delivered.

1. Open your browser's extension gallery or the official Coinbase Wallet page.
2. Check the publisher name and the user count, and read the permission prompt.
3. Add the extension, then pin its icon to the toolbar so you can see which profile it is active in.
4. Create a new wallet or restore an existing one, then set a strong password.
5. Write the recovery phrase down offline and store it somewhere physically safe.

Yes. During onboarding choose the import/restore option and enter your existing recovery phrase. The wallet is then reconstructed on the new device or browser, with the same addresses and the same balances.

Importing is safe as long as you type the phrase into the wallet's own onboarding screen and nowhere else. Any website, pop-up, chat message or phone call that asks you to enter a recovery phrase is a scam — no legitimate service needs it.

No. Browser extensions are a desktop feature — mobile browsers do not support them. For phones and tablets, use the Coinbase Wallet mobile app, which also offers a built-in dApp browser and mobile-specific sign-in options.

The same wallet can be used in both places: restore it on the phone with the recovery phrase, or connect the two through the wallet's own linking flow.

On your device. The extension generates the keys locally and stores them encrypted with the password you set — they are never uploaded to Coinbase or to this site. A recovery phrase (commonly 12 words) is the human-readable backup of those keys.

Consequences worth internalising: if you lose the recovery phrase, nobody can restore the wallet for you. If someone else gets the phrase, they own the funds, instantly and irreversibly.

No — and neither will anyone else legitimate. Not support agents, not wallet "validation" pages, not a migration tool, not a browser update prompt, not someone in a Telegram or Discord group "helping" you.

If anything asks for your 12 words, it is an attempt to steal everything in the wallet. Close it and, if you already typed the phrase anywhere, move your assets to a freshly created wallet immediately — the old phrase must be treated as compromised.

Two different things, and it is worth knowing which is which:

• Connect requests share your public address so a dApp can read your balances. They do not move funds, and you can disconnect at any time.
• Transaction and signature requests can move funds or grant a contract permission to spend a token. Read the details — the amount, the recipient, the network — before approving.

Unlimited token approvals are the usual way wallets are drained later. Revoke approvals you no longer use, and treat an unexpected signature request as hostile.

• Fake extensions in search results and ads with names that look almost right.
• Seed-phrase requests from "support", "migration" or "airdrop" pages.
• Drainer sites that ask for a signature that actually transfers your tokens.
• Fake airdrops that require connecting a wallet and signing something.
• Clipboard hijackers that swap a copied wallet address for the attacker's.

Defences that actually work: bookmark the real dApps you use, check the recipient address after pasting, keep a separate wallet for experiments, and use a hardware wallet for meaningful balances.

Coinbase Wallet supports the major EVM networks — for example Ethereum, Base, Polygon, Arbitrum, Optimism, Avalanche and BNB Chain — as well as Solana, with testnets available for developers. You can switch networks from the network selector in the wallet.

The exact list changes as networks are added or deprecated, so check the selector in your own copy of the wallet rather than relying on any static list, including this one. Sending a token on the wrong network is one of the easiest ways to lose it.

In supported regions, yes — a "Buy" flow lets you purchase crypto with a debit card or bank transfer, usually fulfilled through Coinbase's payment rails and delivered to the wallet address.

Availability, payment methods, limits and identity checks depend on your country and on the provider, so the option may not appear for everyone. You can always fund the wallet by transferring crypto from another wallet or exchange instead.

A swap trades one token for another on the network you are connected to, using an aggregator to find a route and a price. A bridge moves assets between networks.

Both are on-chain operations, so you still pay a network fee, and both can fail or return less than the quote if the market moves while the transaction is pending. Review the quoted output, the price impact and the slippage setting before you confirm.

1. Is the extension installed, enabled and unlocked in the browser profile you are actually using? Extensions do not carry across browser profiles.
2. Reload the page after unlocking the wallet — most dApps only detect a provider on load.
3. Check that the dApp supports Coinbase Wallet, or use its WalletConnect / QR option instead.
4. If another wallet extension is competing for the same provider slot, disable one of them and reload.

A pending transaction is usually waiting on network congestion or a fee that was set too low. Options are to wait, to speed it up or cancel it from the activity list where the network supports replacement transactions, or — if it is genuinely stuck — to send a new transaction with the same nonce.

A failed transaction still consumes the network fee, because the network processed it. Check the block explorer link shown in the wallet for the exact reason.

To remove it, open your browser's extension manager, find the wallet and remove it. Removing the extension does not destroy your funds — the assets live on the blockchain — but you will need the recovery phrase to restore access, so never remove a wallet you cannot restore.

If you want the equivalent of a clean reinstall while keeping the same wallet, remove the extension and restore it from the recovery phrase in a fresh install.

No. This is an independent educational guide that explains how the extension works. It is not affiliated with, endorsed by or operated by Coinbase, it does not host a wallet download, and it will never ask for a recovery phrase, a private key or a password.

For anything account-specific — a blocked account, a failed purchase, a bug report — use the official Coinbase Wallet support channels from the official site.