Remy Froissart, CNRS

Cette page est en lecture seule. Vous pouvez afficher le texte source, mais ne pourrez pas le modifier. Contactez votre administrateur si vous pensez qu'il s'agit d'une erreur.



img  width: 750px;  iframe.movie  width: 750px; height: 450px; 
Coinbase wallet extension setup use dapps recovery phrase guide



Coinbase Wallet Extension Setup Guide Using DApps and Recovery Phrase

Install the Coinbase Wallet extension directly from the Chrome Web Store to begin. This step ensures you avoid fraudulent copies. After adding it to your browser, click the new extension icon and select "Create new wallet." The software will then generate your unique 12-word recovery phrase.


Write down these twelve words on paper in the exact order they appear. This phrase is the master key to your funds; the extension itself does not store it. Store this paper copy somewhere secure, away from digital cameras or online storage. Confirm the phrase by selecting each word in the correct sequence when prompted, finalizing your wallet's creation.


With your wallet active, you can connect to decentralized applications. Visit a DApp's website, like a decentralized exchange or NFT platform, and look for a "Connect Wallet" button. Choose Coinbase Wallet from the list and authorize the connection from the extension pop-up. This grants the DApp permission to interact with your wallet's public address for transactions.


You will use the extension to review and approve every transaction. Before signing, always double-check the details: the receiving address, the network, and the gas fee. This habit prevents errors and unauthorized transfers. The extension keeps your private key secure on your device, so transactions require your manual approval.


If you need to restore access, open the extension and choose "I already have a wallet." Enter your 12-word recovery phrase precisely. A single misplaced word can lock you out permanently. Successful entry recovers your complete wallet, including all assets and transaction history, on any new device.

Installing the Coinbase Wallet Extension in Your Browser

Go directly to the official Chrome Web Store or your browser's dedicated extension marketplace. Search for "[[https://extension-web3.com/coinbase-wallet.php|Coinbase Wallet Troubleshooting]] Wallet" and confirm the developer is listed as "Coinbase." This step prevents installing fraudulent software.


Click the "Add to Chrome" button. A dialog box will request the permissions the extension needs. Review these, then select "Add extension." The installation completes in seconds, and the Coinbase Wallet icon will appear in your browser's toolbar.


If you don't see the icon, click the extensions puzzle piece in your toolbar and pin the Coinbase Wallet for easy access. Your extension is now installed but not yet active. The next step is creating a new wallet or connecting an existing one.


Click the toolbar icon to launch the setup. You will face a clear choice:


Create a new wallet: The extension will generate a unique 12-word recovery phrase for you.
I already have a wallet: You can enter your existing 12-word recovery phrase to restore your wallet and assets.


Choose the option that matches your situation. The extension will guide you through the specific verification steps for your choice, ensuring your wallet is ready for use with dapps.

Creating a New Wallet and Securing Your Recovery Phrase

Install the Coinbase Wallet extension and select 'Create a new wallet'. The software will immediately generate your unique, 12-word recovery phrase.


Write each word down in the exact order it appears on your screen. Use a pen and a durable material like the provided card or a metal backup plate. This physical copy is your primary safety net.


Never save this phrase digitally. Avoid typing it into a document, email, note-taking app, or cloud storage. Screenshots are equally risky, as they can be accessed by malware.


Confirm you've recorded it correctly. The extension will ask you to re-enter the phrase, typically by selecting words from your list in sequence. This step verifies your backup and activates the wallet.


Store your written phrase in a secure, private location, such as a locked drawer or a safe. Treat it with the same level of security you would use for physical cash or a passport. Anyone with access to these words controls your funds.


Your recovery phrase is the only way to restore your wallet if you lose access to your device or browser. Coinbase cannot retrieve it for you. Keeping it secret and safe is your most critical responsibility.

Importing an Existing Wallet with a Secret Recovery Phrase

Prepare your 12, 18, or 24-word recovery phrase before you start. Have it ready on paper or stored securely offline; typing it from a digital file increases security risks.


Open the Coinbase Wallet extension and select "I already have a wallet." Choose "Recovery phrase" as your import method when prompted. You will see a series of text fields.


Enter your words in the exact order they were given, with a single space between each one. Double-check for typos, especially with similar-looking words like "quite" and "quiet." The phrase is case-insensitive.


After entering the phrase, create a new, strong password for this extension. This password encrypts your wallet data locally on this browser and device. Confirm the password and proceed.


Your wallet dashboard should now appear, displaying your existing assets and transaction history. The import process is complete once you see your correct balance.


For safety, send a small test transaction after importing. This confirms you fully control the wallet and that the import was successful before moving larger amounts.

Connecting the Wallet Extension to a Decentralized Application

Open the decentralized application (dApp) you want to use in your browser and locate its "Connect Wallet" button, typically found in the top-right corner.


Clicking this button will usually display a list of wallet options. Select "Coinbase Wallet" from this menu. A connection request notification will appear from your Coinbase Wallet extension; carefully review the permissions the dApp is asking for, such as your public address and permission to view your token balances.


Confirm the request in the extension pop-up. This action shares your public wallet address with the dApp but never compromises your private keys or recovery phrase. The dApp interface will update to show your connected address and balance, confirming a successful link.



Action
What to Check


Initiate Connection
You are on the dApp's official website, not a phishing copy.


Review Request
The requested permissions are reasonable for the dApp's function.


Confirm Transaction
Every transaction requires a separate, final confirmation in the extension pop-up.



For your first transaction, the dApp will send a new request to your wallet extension. A pop-up will show the transaction details, including network fees (gas). Verify the details, especially the recipient address and amount, then approve. Each operation requires this separate, explicit approval.


If a connection fails, ensure your wallet extension is unlocked and you are on the correct blockchain network. Most dApps operate on Ethereum Mainnet, but others use networks like Polygon or Arbitrum. You can switch networks directly within the dApp's interface or from your wallet extension settings.


To disconnect, find the dApp's interface section showing your address. It often has a "Disconnect" or "Log Out" option. You can also manage all active connections from the settings menu within your Coinbase Wallet extension, where you can revoke access for any dApp.

Approving Transactions and Interacting with DApp Functions

Always review every transaction detail in the Coinbase Wallet pop-up before you approve. This window shows the network fee, the total amount, and the recipient address.


You will encounter two primary transaction types: simple transfers and token approvals. A transfer sends crypto directly to another address. A token approval grants a DApp permission to access a specific token in your wallet, which is necessary for swapping or staking.


For token approvals, pay close attention to the approved spending limit. Some DApps request an unlimited amount. For better security, modify this to the exact amount you plan to use for that specific interaction. You can adjust this limit in the approval transaction pop-up before signing.


After you confirm, the transaction moves to a pending state. You can track its progress directly within the wallet's activity tab. Network congestion can cause delays, so patience is sometimes required.


If a DApp function seems unresponsive after your approval, check your wallet for a pending signature request. The extension might be waiting for you to sign a follow-up transaction. Refreshing the DApp page can also re-establish the connection.


Keep your extension updated to ensure compatibility with the latest DApp transaction types and security improvements.

Restoring Wallet Access if the Browser Data is Lost

Locate your 12-word recovery phrase immediately; this is the only way to restore your wallet after clearing browser data.


Install the Coinbase Wallet extension again from the official Chrome Web Store. During the new setup, select "I already have a wallet." The extension will ask for your secret recovery phrase.


Enter your phrase exactly as you wrote it, with each word separated by a single space. Double-check for typos, especially with similar words like "there" and "their." The order of the words is absolute.


After submitting the phrase, you can set a new password for the extension. Your restored wallet will show all your previous assets and transaction history, as they live on the blockchain, not in your browser.


If you stored your recovery phrase in a password manager or a text file on your computer, retrieve it from there. Never type your phrase into a website or share it with anyone claiming to be support.


For future security, consider writing the phrase on paper and storing it physically. You might also explore a hardware wallet for significant holdings, which keeps your keys completely offline while still working with browser extensions.

Q&A:
I installed the Coinbase Wallet extension but can't find my recovery phrase. Where is it shown during setup?

Your recovery phrase, also called a secret recovery phrase or seed phrase, is only shown once during the initial wallet creation. After you create a new wallet within the extension, a 12-word list will appear on your screen. You must write down these words in the exact order on a physical piece of paper. The extension will not show this phrase again in full on-screen for security reasons. If you missed it or the setup seemed to skip it, you likely created a wallet using an email or Google account—this is a different, custodial product. For the non-custodial extension wallet with a phrase, you need to start over and create a new wallet, ensuring you carefully note the phrase when it appears.

Can I use the same recovery phrase from my mobile Coinbase Wallet app in the browser extension?

Yes, you can. This is a common way to access the same wallet account across different devices. In the extension setup, choose the option "I already have a wallet" or "Import wallet." You will be prompted to enter your existing 12-word recovery phrase. Typing it in carefully will restore your entire wallet, including all assets and transaction history, into the new browser extension. This phrase is universal for your self-custody wallet, not tied to a specific app.

What happens if I enter my recovery phrase into a fake or phishing website?

If you type your recovery phrase into any website, you will likely lose all your cryptocurrency permanently. The genuine Coinbase Wallet extension will never ask you to type your phrase on a webpage. It only asks for it during the initial import process directly inside the extension's own interface. Phishing sites mimic login pages to steal this phrase. Anyone with these 12 words has complete control over your wallet and can transfer all funds out. Treat your recovery phrase like the master key to your safe: never digitalize it, never share it, and only enter it into the official wallet software itself.

I lost my recovery phrase. Can Coinbase support get it back for me?

No, Coinbase support cannot recover or reset your secret recovery phrase. This is a core principle of self-custody wallets: you, and only you, hold that phrase. The company does not store a copy. If you lose the phrase and your device is reset or the extension is removed, your wallet and all funds within it become permanently inaccessible. Your only option is to try and find the physical paper where you wrote it down. This is why securing that written phrase is the most critical step in the entire setup process.

After setting up the extension with my phrase, how do I actually connect to a dapp?

Connecting to a dapp is straightforward. First, visit the website of the decentralized application you want to use. Look for a "Connect Wallet" button, usually on the main page. Click it, and a pop-up will show a list of wallet options. Select "Coinbase Wallet" from this list. Your browser extension should then trigger a connection request, asking you to confirm the link between the dapp and your wallet address. Once you approve, the dapp can view your public address and interact with your assets, but it cannot move funds without your specific approval for each transaction.

I installed the Coinbase Wallet extension, but I don't see a recovery phrase. Where do I find it?

During the initial setup of the Coinbase Wallet browser extension, you are prompted to create a new wallet or use an existing one. If you choose "Create a new wallet," the extension will immediately display your 12-word recovery phrase (also called a secret recovery phrase or seed phrase). This happens only once. You must write it down on paper at that moment. If you clicked through this screen without recording it, you cannot recover it later from within the extension. You would need to reset the wallet and start over, losing any funds sent to the initial address. The phrase is never stored in plain text on your computer and is not visible in the extension's settings after setup for security reasons.
Remy Froissart, CNRS

Outils pour utilisateurs

Outils du site

Outils de la page
