MetaMask – Crypto Wallet

The most secure wallet for crypto, NFTs, and DeFi, trusted by millions of users

MetaMask is the most secure and flexible crypto wallet used by millions globally to manage digital assets including cryptocurrencies, NFTs, and DeFi investments. It allows users to seamlessly buy, sell, swap, and earn with thousands of tokens supported across multiple blockchains such as Ethereum, Solana, Bitcoin, Polygon, and more.

With industry-leading security, MetaMask safeguards your transactions with live threat surveillance and MEV protection while giving you full privacy control. Connect effortlessly to decentralized apps to explore web3 gaming, DeFi protocols, and NFT marketplaces. The wallet offers 24/7 human customer support ensuring that help is always available when you need it. Download MetaMask to securely manage your portfolio and join the decentralized web today.

By:
danfinlay
Daily users:
389,611 -7,906
Rating:
4.23
(4,239)
6 new ratings
Version:
12.17.3 Last updated: 2025-05-20
Version code:
5950009
Creation date:
2016-08-17
Risk:
High risk impact Low risk likelihood
Permissions:
  • storage
  • unlimitedStorage
  • clipboardWrite
  • http://*/*
  • https://*/*
  • ws://*/*
  • wss://*/*
  • activeTab
  • webRequest
  • webRequestBlocking
  • See more
Size:
22.69MB
Email:
su*****@metamask.io
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Browser Add-ons
Updated:
18 hours ago

Other platforms

MetaMask (v12.20.0)
14,000,000 2.74 (5,450)
MetaMask - Crypto Wallet (v7.46.2)
39,595,244 4.50 (433,025)
MetaMask (v12.17.2)
4,010,308 3.50 (259)

User reviews

Multiple users report that MetaMask – Crypto Wallet for Firefox frequently freezes or gets stuck on the loading screen, prevents progress after password entry, and crashes causing high memory usage. Problems appeared or worsened after an update, impacting access to keys and overall usability. Despite these issues, some users had a positive impression prior to the malfunction.
Pros
  • Some users liked the add-on before issues appeared (e.g., described as 'nice', 'bon').
Cons
  • Extension frequently freezes or gets stuck on the loading or unlocking screen.
  • Crashes often, causing high RAM usage and freezing Firefox.
  • Password input does not proceed or respond after entry.
  • Issues started occurring after a recent update, affecting functionality.
Recent reviews
by Fi*****, 2025-06-22

by Ma*****, 2025-06-21

by ja*****, 2025-06-19
View all user reviews ›

Extension safety

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

MetaMask – Crypto Wallet requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Browser Add-ons, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

MetaMask – Crypto Wallet has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • Medium This extension was updated in the past 3 months. New updates may not be stable or safe.
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Upgrade to see full risk analysis details

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