MetaMask – Crypto Wallet Firefox

MetaMask – Crypto Wallet

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

Features & Capabilities

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.

User Growth & Download Statistics

By:
MetaMask
Daily users:
316,271 -13,816
Rating:
4.20
(4,319)
Version:
13.34.1.0 Last updated: 2026-06-10
Version code:
6299246
Creation date:
2016-08-17
Risk:
High risk impact Moderate risk likelihood
Permissions:
Content scripts matches:
  • *
  • connect.trezor.io
Size:
24.00MB
Email:
su*****@metamask.io
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-23
Compare stats and ranking:

Other platforms

Chrome
MetaMask (v13.36.0)
12,000,000 2.67 (5,885)
Android
MetaMask: Trade Crypto (v7.81.0)
46,594,213 4.45 (480,746)
Edge
MetaMask (v13.16.3)
2,845,019 3.50 (269)

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
MetaMask
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/ether-metamask/
Email:
su*****@metamask.io
Website:
https://metamask.io

Permission Change History

2026-04-02: Version 13.18.1 → 13.20.1
Add Permissions: cookies
2025-08-11: Version 12.17.3 → 12.23.1
Add Permissions: identity
Add Optional permissions: clipboardRead
2025-03-18: Version 12.6.2 → 12.12.0
Add Permissions: ws://*/* wss://*/*
2024-12-16: Version 12.0.6 → 12.6.2
Add Permissions: http://*/* https://*/* webRequestBlocking
Remove Permissions: http://localhost:8545/ https://*.infura.io/ https://*.codefi.network/ https://*.cx.metamask.io/ https://chainid.network/chains.json https://lattice.gridplus.io/*
2024-05-23: Version 11.12.4 → 11.14.5
Add Permissions: https://*.cx.metamask.io/
2023-03-06: Version 10.22.2 → 10.25.0
Add Permissions: https://*.codefi.network/

User Reviews

Users praise the MetaMask extension for easy-to-use conversions and a useful, well-designed wallet that enhances browsing. However, multiple reviews emphasize persistent reliability and performance problems: frequent crashes and unexpected errors, slow and laggy operation, and even high memory usage. Several updates are described as buggy and less secure, with offline access often unavailable. Reinstallations are commonly needed to regain functionality. Overall, the addon delivers convenient crypto workflow and design, but stability and update-related issues significantly detract from the experience.
Pros
  • Makes token conversions easy to perform and streamlines the workflow.
  • Useful and easy to use; well designed and functional.
  • Helpful extension that enhances browsing with crypto wallet capabilities.
Cons
  • Frequent crashes and unexpected errors; unreliable operation.
  • Performance issues, lag, and high resource usage.
  • Updates introduce bugs and can remove or hinder offline access; security concerns.
  • Often requires reinstalls to regain functionality.
Recent reviews
I have no idea how it works, but after metamask changed the UI, it becomes garbage. And it will continues loading sth in the background and finally it eat all my memory (FYI, used more than 15GB RAM) and affect my whole PC WTF... BTW I don't even unlock it and it still running in the background. After I disabled metamask extension, Firefox become normal and as smooth as before. Very disappointed to metamask.
by Ly*****, 2026-05-26

by Fi*****, 2026-05-20

by Fi*****, 2026-05-19
View all user reviews ›

Is MetaMask – Crypto Wallet Safe?

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 Add-ons Store, 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 is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
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Best MetaMask – Crypto Wallet Alternatives

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