MetaMask

MetaMask

Ethereum Browser Extension

What is MetaMask?
MetaMask is an innovative Firefox add-on serving as a fully functioning Ethereum wallet in your browser. This extension plays a crucial role in accessing Ethereum enabled distributed applications, or 'Dapps'. It injects the Ethereum web3 API into every website's javascript context to allow dApps to retrieve information from blockchain. It also allows users to create and manage their own Ethereum identities, facilitate transactions and interact securely with dApps.
Stats
By: danfinlay
Version: 11.12.4 (Last updated: 2024-03-27)
Creation date: 2016-08-17
Weekly download count: 10,578
Firefox on Android: No
Risk impact: High risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
Permissions:
  • storage
  • unlimitedStorage
  • clipboardWrite
  • http://localhost:8545/
  • https://*.infura.io/
  • https://*.codefi.network/
  • https://chainid.network/chains.json
  • https://lattice.gridplus.io/*
  • activeTab
  • webRequest
  • See more
Size: 20.85M
Stats date:

Other platforms

MetaMask
MetaMask (v11.14.0)
3.02 (4,026) 17,000,000
MetaMask
MetaMask (v11.12.2)
3.60 (240) 3,768,437
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Summary

An Ethereum Wallet in your Browser MetaMask is an extension for accessing Ethereum enabled distributed applications, or "Dapps" in your browser!

Watch an introductory video here.

The extension injects the Ethereum web3 API into every website's javascript context, so that dapps can read from the blockchain.

MetaMask also lets the user create and manage their own identities (via private keys, local client wallet and hardware wallets like Trezor™), so when a Dapp wants to perform a transaction and write to the blockchain, the user gets a secure interface to review the transaction, before approving or rejecting it.

Because it adds functionality to the normal browser context, MetaMask requires the permission to read and write to any webpage. You can always "view the source" of MetaMask the way you do any Chrome extension, or view the source code on Github: https://github.com/MetaMask/metamask-plugin

Enables access to: Web 3.0 Dapps

See more
User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Great, Fast, Powerful, easy to use Wallet.
Cons
  • Twice I've had all of my funds removed with no explanation
  • Can't log in to my metamask app
  • New release stop working on firefox
  • version 11.7.5 stopped working on Firefox linux
Most mentioned
  • Twice I've had all of my funds removed with no explanation
  • Can't log in to my metamask app
  • New release stop working on firefox
Recent reviews
by p2daw22, 2024-04-15


View all user reviews
Safety
Risk impact

MetaMask is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install MetaMask if you trust the publisher.

Risk likelihood

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

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Screenshots