Coinbase Extension — Starting Up™ Your Device | Coinbase®

The Coinbase Extension provides a convenient way to access a self-custody crypto wallet directly from a supported desktop browser. A browser extension can make it easier to connect to decentralized applications (dapps), manage digital assets, and approve onchain transactions without relying entirely on a mobile wallet.

Coinbase’s wallet ecosystem has evolved, and current Coinbase Help documentation refers to the browser-extension experience as the Base browser extension in some places. Coinbase also continues to provide official wallet resources for browser-based access. Before installing anything, always check Coinbase’s current official documentation so you are using the appropriate product and software.

What Is the Coinbase Extension?

A browser wallet extension is software that adds wallet functionality to a web browser. It can allow users to connect their wallet to supported dapps, interact with decentralized exchanges, manage NFTs, and perform other onchain activities directly from a computer.

Coinbase originally introduced its standalone Wallet browser extension to bring self-custody and Web3 functionality to desktop users. The extension was designed to let users browse dapps, interact with decentralized finance applications, trade on decentralized exchanges, and manage NFTs from a browser.

Today, Coinbase's official wallet resources describe browser-extension access alongside newer wallet experiences. Supported availability and features can change, so users should consult the current Coinbase Wallet resources before getting started.

How to Get Started

Before installing a wallet extension, make sure you are using the official Coinbase website or the official browser extension store. Coinbase recommends exercising caution when installing browser plugins and advises users to obtain them from the official repository for their browser.

For a compatible browser extension, the general setup process includes:

The exact screens may vary as Coinbase updates its wallet products.

Creating a New Wallet

When creating a self-custody wallet through the browser extension, you may be given a recovery phrase. Coinbase's documentation explains that the recovery phrase is critical because it provides access to the wallet. Coinbase cannot recover the phrase for you.

Write the recovery phrase down carefully and store it somewhere secure. Do not send it through email or messaging services, save it in an easily accessible cloud document, or enter it into a website that asks for it unexpectedly.

Your recovery phrase should be treated as the master credential for the wallet. Anyone who obtains it may be able to access the associated assets.

Importing an Existing Wallet

Users who already have a self-custody wallet may be able to import it into the compatible Coinbase browser extension. Coinbase's documentation describes importing an existing wallet using its recovery phrase. Supported wallets can include Ethereum-based wallets created through other providers.

Before importing an existing wallet, make sure you understand the security implications. The recovery phrase should only be entered into the genuine wallet software you intentionally selected.

Never provide your recovery phrase to a person claiming to be Coinbase support. Coinbase cannot recover a lost recovery phrase for a self-custody wallet.

Connecting to Decentralized Applications

One of the main advantages of a wallet extension is the ability to connect to dapps through a desktop browser.

When you visit a compatible dapp, you may see an option such as Connect Wallet or Connect to Base. Selecting the appropriate option can allow the website to communicate with your wallet for supported actions.

Connecting a wallet does not automatically mean that a dapp can spend all your assets. However, users should carefully review permissions and transaction requests before approving anything.

Coinbase warns that malicious smart contracts can potentially exploit unlimited token allowances. Users should exercise caution with token approvals and regularly review or revoke unnecessary dapp permissions.

For more information, explore the official Coinbase dapp security guide.

Review Every Transaction

A wallet extension makes onchain transactions convenient, but convenience should not replace careful verification.

Before approving a transaction, review the destination address, token, amount, network, and requested permissions. If a website asks you to sign a message or approve a transaction that you do not understand, stop and investigate first.

Blockchain transactions can be difficult or impossible to reverse once confirmed. Taking a few moments to understand what you are approving can help reduce avoidable mistakes.

Supported Networks and Assets

The assets and networks available through a browser extension depend on the specific Coinbase wallet experience and current software version.

Coinbase's documentation has listed Ethereum and Solana among networks supported by its browser-extension experience, with different functionality available for each network.

Because wallet features can change over time, check Coinbase's current supported networks and assets documentation before transferring funds.

Always select the correct network when sending or receiving cryptocurrency. Sending an asset through an unsupported network can create complications or result in inaccessible funds.

Coinbase Account vs. Self-Custody Wallet

It is also important to distinguish a Coinbase account from a Coinbase self-custody wallet.

A Coinbase account is an exchange account managed through Coinbase's platform, while a self-custody wallet gives the user control over the wallet's recovery credentials. Coinbase's help documentation notes that assets in Coinbase Wallet are not held by Coinbase in the same way as assets held in a Coinbase exchange account.

Some Coinbase wallet experiences can be connected to a Coinbase account for supported funding or purchasing features. However, linking the two does not change the fundamental security responsibilities associated with a self-custody wallet.

Protect Your Coinbase Extension

Security starts with installing genuine software and continues every time you interact with a dapp.

Keep your wallet password private, protect your recovery phrase, and avoid suspicious websites or browser extensions. Do not trust unsolicited messages claiming that your wallet needs to be “verified,” “activated,” or “unlocked.”

Before downloading an extension, verify the publisher and use the official browser store or Coinbase's official website. Coinbase specifically recommends due diligence when installing software and browser plugins.

If you need help, consult the official Coinbase Help Center rather than relying on unofficial support accounts.

Start Using the Coinbase Extension Safely

The Coinbase Extension can provide a practical desktop gateway to self-custody wallets and the wider onchain ecosystem. With the appropriate browser extension, users can connect to supported dapps, manage digital assets, interact with decentralized exchanges, and approve blockchain transactions directly from a computer.

The most important part of setup is protecting your recovery credentials and carefully reviewing every connection and transaction. Start with official Coinbase resources, install only genuine software, keep your recovery phrase private, and verify dapp permissions before approving them.

Recommended Internal Interlinking

Use the exact-match anchor “Coinbase Extension” four times throughout your website. Link each occurrence naturally to four relevant internal pages, such as your Coinbase Extension setup page, wallet download page, dapp/security guide, and Coinbase Support page. Place the four links in separate sections so the internal linking is useful to readers rather than appearing as a concentrated block of keyword links.