MetaMask has become one of the most widely used cryptocurrency wallets in the Web3 ecosystem, supporting over a million monthly active users across desktop and mobile platforms. As a non-custodial wallet, it gives you full control over your digital assets while enabling seamless access to decentralized applications (dApps), blockchain games, and decentralized exchanges (DEXs). Whether you're using a PC or smartphone, this guide will walk you through how to install and set up MetaMask securely and efficiently.
Designed for both beginners and experienced users, MetaMask works across major browsers and operating systems, including Chrome, Firefox, Microsoft Edge, iOS, and Android. Below, we’ll cover step-by-step instructions for installing the extension or app, creating your wallet, securing your recovery phrase, and syncing between devices.
Installing MetaMask on Desktop
To begin using MetaMask on your computer, you’ll need to install it as a browser extension. The process is straightforward and supported on several popular browsers.
Step 1: Download the MetaMask Extension
Visit the official MetaMask website and download the extension tailored to your browser:
- Chrome or Brave: Available via the Chrome Web Store
- Firefox: Accessible through Mozilla Add-ons
- Microsoft Edge: Found in the Edge Add-ons store
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Only download MetaMask from verified sources to avoid phishing attacks or counterfeit versions. Never install MetaMask from third-party sites or email links.
Step 2: Launch Setup and Agree to Terms
Once installed, click on the fox icon in your browser toolbar to launch the setup wizard. You'll be prompted to review the terms of service—read them carefully before clicking “I Agree” to proceed.
Step 3: Create a New Wallet
Choose the “Create a Wallet” option. You’ll then be asked to create a password. This password protects your local data and must be at least eight characters long. Remember: MetaMask does not recover lost passwords, so keep it secure and memorable.
Step 4: Save Your Secret Recovery Phrase
You'll be shown a 12-word Secret Recovery Phrase (also known as a seed phrase). This phrase is the master key to your wallet—if lost, you could permanently lose access to your funds.
Best practices for storing your recovery phrase:
- Write it down on paper and store it in a fireproof safe
- Use a trusted password manager like 1Password
- Never store it digitally as plain text (e.g., screenshots, notes apps)
Avoid taking photos, emailing it, or saving it in cloud storage.
Step 5: Confirm Your Recovery Phrase
MetaMask will ask you to re-enter the words in order to verify that you’ve saved them correctly. After successful confirmation, click “All Done.” Your wallet is now created and connected to the Ethereum Mainnet by default.
Setting Up MetaMask on Mobile Devices
The mobile version of MetaMask offers the same functionality as the desktop extension, optimized for touch interfaces and on-the-go use.
Step 1: Install the App
Download the MetaMask app from:
- Apple App Store (for iOS)
- Google Play Store (for Android)
Ensure you’re downloading the authentic app developed by ConsenSys Software Inc.
Step 2: Begin Setup Process
Open the app and tap “Get Started.” Select “Create a Wallet,” then set up a strong password. Again, this password cannot be recovered if forgotten.
Step 3: Back Up Your Recovery Phrase
Just like on desktop, you’ll receive a 12-word recovery phrase. Write it down carefully and store it securely. The app will prompt you to confirm the phrase immediately after.
Once confirmed, your wallet is ready to use. You're automatically connected to Ethereum, but you can switch networks later under Settings > Networks.
Understanding Your Ethereum Address
After setup, you’ll see “Account 1” with a public address displayed beneath it—a string of letters and numbers starting with 0x. This is your Ethereum address, which others can use to send you ETH or tokens.
You can copy this address directly from the interface. For added privacy, MetaMask allows you to create multiple accounts under the same wallet:
- Tap your profile icon (top right on desktop, top center on mobile)
- Click “Create Account”
- Assign a name (e.g., “Trading” or “Savings”)
- Confirm creation
Each account has its own unique address but shares the same recovery phrase. You can switch between accounts instantly.
Syncing MetaMask Across Devices
One of MetaMask’s most useful features is cross-device synchronization. You can seamlessly link your mobile app with your desktop extension using a QR code.
How to Sync:
- Open MetaMask in your browser
- Click your profile icon > Settings > Advanced > Sync with Mobile
- A QR code will appear
- On your mobile device, open the MetaMask app
- Tap “Sync or Import” > “Scan QR Code”
- Scan the code from your desktop screen
Now, your transactions, accounts, and network settings stay in sync across devices.
Note: If the sync option doesn’t appear on mobile, ensure you’re logged out or have removed any existing accounts first.
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Frequently Asked Questions (FAQ)
Is MetaMask free to use?
Yes, MetaMask is completely free to download and use. There are no subscription fees or hidden charges for wallet creation or management.
Can I use MetaMask without an internet connection?
No—MetaMask requires an active internet connection to interact with blockchains and dApps. However, your private keys remain stored locally on your device.
What happens if I lose my Secret Recovery Phrase?
Unfortunately, there’s no way to recover it. Without the phrase, you cannot restore access to your wallet or funds. Always back it up securely.
Can I use MetaMask on multiple computers?
Yes—you can install MetaMask on multiple devices and restore the same wallet using your recovery phrase. Alternatively, use QR sync for convenience.
Does MetaMask support blockchains other than Ethereum?
Yes! While Ethereum is default, you can manually add networks like Binance Smart Chain, Polygon, Arbitrum, Optimism, and more under Settings > Networks.
Is MetaMask safe?
MetaMask is secure when used correctly. Always protect your password and recovery phrase, avoid suspicious websites, and double-check transaction details before confirming.
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By following this guide, you now know how to install and set up MetaMask on PC and mobile devices securely. With your wallet ready, you’re equipped to explore decentralized finance (DeFi), NFTs, play-to-earn games, and more within the growing Web3 landscape. Always prioritize security—your keys, your crypto.