How to Import Existing Wallets into Rabby: Migrate from MetaMask or Coinbase

Users holding cryptocurrency across multiple wallets often face a practical decision: maintain fragmented management across several browser extensions and apps, or consolidate into a single interface. The shift from MetaMask, Coinbase Wallet, or other custodial or self-custody solutions to a new wallet typically requires importing either a recovery phrase or private keys. The process sounds straightforward—paste seed words, confirm, done—but the execution carries real security consequences. A careless step during import can expose private keys to intermediaries, create duplicates across unprotected systems, or leave the original wallet in a compromised state.

Rabby Wallet addresses this scenario with a self-custody browser extension designed for Ethereum and EVM-compatible networks. The rabby wallet extension operates as open-source code published on GitHub, functions across Chrome, Brave, and Microsoft Edge, and maintains no custodial control over user funds. Before moving assets into any new wallet, however, users must understand what import truly means: which credentials matter, how to verify the destination, what happens to the original wallet, and which mistakes are reversible. This guide walks through that process with specific, testable steps rather than assumptions.

Understanding recovery phrases, private keys, and what import actually means

Two distinct import mechanisms exist. A recovery phrase, also called a seed phrase or mnemonic, is a sequence of 12 or 24 words that mathematically generates all private keys and addresses associated with a wallet. A private key is a long hexadecimal string that controls a single specific address. When importing a recovery phrase into the rabby wallet extension, the software regenerates the entire account structure from that phrase. When importing a private key, only that one address is added to the wallet.

The distinction matters operationally. If you import a recovery phrase from MetaMask into Rabby, both wallets will display the same addresses and balances because they derive from identical cryptographic material. If you later use MetaMask and Rabby simultaneously, you risk approving contradictory transactions, losing track of nonce ordering, or accidentally signing a transaction you didn’t intend to execute. The two wallets are not separate backups; they are two interfaces accessing the same on-chain accounts. The private keys remain yours, but the interface multiplicity creates coordination risk.

Importing a private key alone is safer in that sense because it adds only one address to Rabby while leaving the original wallet intact and unaffected. However, a private key import creates a wallet structure unrelated to the original’s recovery phrase. If the device is lost and you restore Rabby from a new recovery phrase, the imported private key account will not restore unless you separately back up that private key. This asymmetry between seed-based accounts and imported private keys is a frequent source of confusion and fund loss.

Before importing anything, decide whether you intend to migrate entirely (deactivate the old wallet, move all funds, discard the old seed) or coexist (keep both wallets active, use them for different purposes, maintain both recovery phrases). That decision determines which import method and which post-import steps are appropriate.

Preparing your existing wallet for safe export

Begin by ensuring the wallet you are exporting from is secure and that you have a verified backup of its recovery phrase or private keys. Open MetaMask, Coinbase Wallet, or whichever source wallet you are using, and locate the security settings. For MetaMask, this is typically found under Account Details or Security & Privacy. Coinbase Wallet uses Account Settings or Recovery Phrase (if it was set up with one).

Write down the recovery phrase on paper in a safe location away from your computer. Do not photograph it, screenshot it, or paste it into any digital file unless you are certain that file is air-gapped from network access. Verify that you have written every word in the correct order by re-reading it aloud against the on-screen display. A single word in the wrong position will generate a completely different set of accounts when imported elsewhere.

For added safety, write the phrase twice in two separate physical locations. This protects against loss of a single note while preventing the original wallet and new wallet from using identical recovery locations. Some users also create a test recovery by temporarily importing into a separate browser profile or virtual machine to confirm the phrase is correct before proceeding. This is time-consuming but catches errors before they matter.

If you are exporting a private key instead of the full recovery phrase, follow the same verification process. In MetaMask, the private key for a specific address appears under Account Details → Export Private Key (after entering your password). Copy it once, paste it into a text file, verify the first and last few characters match, and then close the file without saving. If the text was edited or modified in any way, do not use it for import.

Installing the Rabby wallet extension from the official source

Before importing anything, download and install the rabby wallet extension only from the official rabby.io website or directly from browser extension stores (Chrome Web Store, Brave Add-ons, Edge Add-ons). Counterfeit extensions using similar names are a documented attack vector. Users who install a lookalike extension and then import a recovery phrase may have their accounts compromised before they realize the software is fraudulent.

Visit rabby wallet extension official download page and select your browser. Chrome users should click “Add to Chrome,” which redirects to the Chrome Web Store. Verify that the extension publisher is listed as “RabbyHub” or the official Rabby team. Check the number of users and reviews—the legitimate version has tens of thousands of installations. If the store listing shows a very small user count or obviously suspicious reviews, do not install it.

After clicking Install or Add, the extension should appear in your browser’s toolbar. Click the icon to open the Rabby interface. You will be prompted to create a new wallet or import an existing one. At this stage, you have not yet entered any sensitive information. The next step determines whether you are setting up Rabby as a new standalone wallet or importing an existing one.

Before proceeding to import, ensure your device is in good security standing: antivirus is current, no suspicious browser extensions are installed, and you have not recently visited phishing sites. A compromised device can record whatever you type, including recovery phrases. If you are uncertain about your device’s security, this is an excellent time to use an air-gapped device, a dedicated virtual machine, or a trusted computer in a different physical location.

Importing a recovery phrase into Rabby Wallet setup

Inside the Rabby extension, select “Import Wallet” or the equivalent option presented on the setup screen. Choose “Mnemonic” or “Recovery Phrase” as the import type. Rabby Wallet setup will present a text field asking you to paste or type your recovery phrase. This is the critical moment: close all other applications except this one, disable your clipboard history tool if you have one running, and ensure no screen recording or screenshot tool is active.

Type or paste the recovery phrase carefully, word by word, into the field. Some users prefer typing rather than pasting because paste operations can be intercepted by clipboard-monitoring malware. Typing is slower but gives you direct control over each character. After entering all words, the interface should display the number of accounts derived (typically showing Account 1, Account 2, etc.) and prompt you to set a password for the Rabby installation on this device.

This password is crucial: it encrypts the imported keys in the browser’s local storage so that merely accessing your computer does not automatically unlock Rabby. Set a strong password of at least 16 characters combining uppercase, lowercase, numbers, and special symbols. Do not use the same password as your email, banking service, or other critical account. Write this password in your password manager or in a physical location separate from your recovery phrase backup.

Rabby will then ask which accounts you want to import. By default, it shows the first account derived from your recovery phrase (matching the primary address in the original wallet). You may also see additional accounts if the source wallet had created them. For a complete migration, import all accounts that held funds in the original wallet. You can import additional accounts later if needed, so this decision is not permanent.

Importing a private key for a single address

If you are importing a private key instead of a full recovery phrase, select “Import Private Key” from the rabby wallet extension setup screen. This option creates a new account within Rabby based on that single private key without deriving any other accounts. Paste or type the private key into the field presented. The interface will display the associated address so you can verify it matches the address you intended to import.

After confirmation, you will be asked to name this account within Rabby (for example, “MetaMask Main,” “Cold Storage Key,” etc.). Use a descriptive label so you know later why this account exists and where its backup is stored. The password you set for Rabby encrypts this account just as it does for accounts imported via recovery phrase.

A key advantage of private key import is isolation: if this device or Rabby installation is later compromised, only this single address is at risk, not all accounts derived from a recovery phrase. However, you must separately back up this private key outside of Rabby’s recovery phrase. If Rabby is lost and you reinstall it from a new recovery phrase, the privately imported account will not return unless you have a separate backup of that private key.

Consider storing a backup of the private key in a password manager or, for high-value accounts, on a hardware wallet or air-gapped device. The private key should never be stored in a cloud document, email, or any internet-connected service without strong encryption. If you use a password manager backup, ensure that manager itself is secured with a long password and two-factor authentication if available.

Verifying the import and confirming account balances

After importing, Rabby displays your account dashboard. Verify that all addresses match what you expect from the original wallet. Click on each account to confirm the correct balance appears. If you are seeing different accounts, different addresses, or missing funds, stop immediately. Do not move any cryptocurrency until you understand the discrepancy. The most common cause is importing from the wrong recovery phrase or accidentally using a different derivation path, but these mistakes are usually visible upon inspection.

Test a small transaction to confirm Rabby can sign and broadcast transactions. Send a small amount of Ethereum or a stablecoin to an address you control (for example, back to the original wallet or to another account in Rabby). Monitor the transaction on a blockchain explorer to confirm it was mined. This test confirms that Rabby is properly connected to the network, your gas fee settings are reasonable, and you can successfully execute transactions.

Only after confirming that the import is correct and transactions execute should you consider moving significant funds or deactivating the original wallet. If you are planning a full migration from MetaMask to Rabby, keep MetaMask installed and accessible for at least 24 hours after the final transaction. This allows time to catch any issues before discarding the recovery phrase of the original wallet.

Check your transaction history in the original wallet to ensure you have not missed any funds. Some accounts may have small balances in tokens you forgot about, or smart contract interactions may have left behind approvals or positions. Review the original wallet’s token list to see all assets, not just the main Ethereum balance.

Managing dual-wallet scenarios and security implications

If you decide to keep both the original wallet and Rabby active simultaneously, establish clear rules about which wallet handles which transactions. Using the same recovery phrase across two interfaces means that nonce values (transaction counters) can become out of sync if one wallet submits a transaction while the other believes it has control. This can result in failed transactions, duplicated approvals, or stuck pending transactions.

The safer approach is to designate one wallet (for example, Rabby) as your primary interface and use the other (for example, MetaMask) only as a read-only view or for emergency access. Never approve transactions in both wallets simultaneously. If you approve a transaction in one, wait for it to be mined before attempting any transaction in the other.

For long-term security, decide whether you will eventually retire the original wallet’s recovery phrase. If you plan to keep MetaMask installed but unused, store its recovery phrase in a separate physical location from Rabby’s, clearly labeled with the date and source. If you decide to discard the original wallet entirely, securely delete the recovery phrase from all temporary storage locations: notes, screenshots, clipboard history, and browser autocomplete. Only after confirming all funds are successfully in Rabby and you have tested Rabby Wallet setup with real transactions should you destroy the original wallet’s backups.

Do not keep the original recovery phrase and Rabby’s password in the same location. If an attacker obtains both, they can access the Rabby installation directly without needing to reinstall from the recovery phrase. Separate the backups by media (one written on paper, one in a password manager) and by location (one at home, one in a safe deposit box).

Troubleshooting common import failures and recovery

If Rabby shows different addresses or balances than expected after import, verify that you are on the correct blockchain. The rabby wallet extension supports Ethereum, BSC, Polygon, Arbitrum, Optimism, and other EVM chains. If the original wallet was on Ethereum but Rabby is displaying a view of Polygon, all balances will appear to be zero. Switch networks within Rabby by clicking the network selector and choosing the correct chain.

If addresses match but balances are missing, check the blockchain explorer directly. Enter one of your imported addresses into Etherscan or the appropriate chain’s explorer and verify the on-chain balance. If the explorer shows funds but Rabby does not, this is usually a synchronization delay. Wait a few minutes and refresh Rabby’s interface. If the issue persists, try removing the account from Rabby and re-importing it.

If Rabby consistently fails to import the recovery phrase, the most likely cause is a typo. Even a single incorrect word will generate a completely different set of accounts. Return to your written backup of the recovery phrase and re-check each word letter by letter. Common mistakes include confusing similar words (like “abandon” and “ability”) or misreading handwriting. If you have a second written copy, compare them word by word to identify the error.

If a private key import fails, verify that you copied the entire hexadecimal string. Ethereum private keys are 66 characters long (including the “0x” prefix) or 64 characters without it. Missing even one character will produce a different address. If the address shown after import does not match the original address, the private key was corrupted or incorrectly copied. Do not proceed until this is resolved.