Log in
Preview of MetaMask Flask

MetaMask Flask by MetaMask Labs

The frontier of Ethereum wallets, in your browser

Experimental
5 (9 reviews)
42 Users
Download Firefox and get the extension
Download file
Screenshots
The MetaMask Flask unlock page.
About this extension
THIS IS THE CANARY DISTRIBUTION OF THE METAMASK EXTENSION, INTENDED FOR DEVELOPERS.

The world's most trusted crypto wallet

MetaMask Flask is a distribution channel of the MetaMask Extension for developers, which gives them access to additional unstable APIs. The goal of Flask is to maximize developer control, so that we can learn the full extent of what developers want to do with MetaMask, and later incorporate these lessons into the main MetaMask distribution.

You can find the main / production version of MetaMask here: https://addons.mozilla.org/en-US/firefox/addon/ether-metamask/

Crypto made easy

– Buy, sell, swap, and earn directly in your wallet
– Choose from thousands of tokens
– Connect to dapps across multiple chains
– Try DeFi, buy meme coins, collect NFTs, explore web3 gaming, and more

Advanced industry-leading security protects you

– Know what you’re signing before you transact
– Live threat surveillance safeguards your wallet
– Designed for privacy, control what you share
– MEV and front-running protection

Live support 24/7

– Around-the-clock support from our (human!) customer service experts

SUPPORTED NETWORKS

Ethereum, Linea, BSC, Base, Arbitrum, Solana, Bitcoin, Cosmos, Avalanche, Cardano, XRP, Polygon, BNB, Starknet, and more.

SUPPORTED TOKENS

Ether (ETH), USD Coin (USDC), Tether (USDT), Wrapped Bitcoin (wBTC), Shiba Inu (SHIB), Pepe (PEPE), Dai (DAI), Dogecoin (DOGE), Cronos (CRO), Celo (CELO), and thousands more.

Download MetaMask today.

Because MetaMask adds functionality to your traditional browser, we require permission to read and write to any webpage. You can always view our source code the way you would any Firefox extension, or on GitHub:

https://github.com/MetaMask

Our privacy policy: https://consensys.net/privacy-policy/
Terms of use: https://consensys.net/terms-of-use/
Rated 5 by 9 reviewers

Star rating saved

5
9
4
0
3
0
2
0
1
0
Permissions and dataLearn more

Required permissions:

  • Input data to the clipboard
  • Display notifications to you
  • Access your data for all websites

Optional permissions:

  • Get data from the clipboard
More information
Version
13.4.2.150
Size
22.9 MB
Last updated
4 days ago (Oct 9, 2025)
Version History
Add to collection
Report this add-on
Release notes for 13.4.2.150
[13.4.2]

Fixed
  • Fixes ci pipeline issue preventing production build creation (#36624)

[13.4.1]

Fixed
  • Fixes the issue where new Trezor hardware wallet users are unable to connect (#36425)
  • Fixes issue with polycon not being set as default for existing users (#36553)
  • Fixes intermittent connection and signing errors with Lattice1 hardware wallets by improving message validation (#36306)

[13.4.0]

Added
  • feat: adds verified trust signal to dapp connection page (#35760)
  • feat: hides bridge recipient picker until there is an active bridge quote (#35821)
  • feat: implements bridge destination account picker modal (#35819)
  • feat: unifies evm and non-evm activity lists for BIP-44 (#35740)
  • feat: renders a new account icon feature tour (#35670)
  • feat: adds mask icons option (#35502)
  • feat: adds version segmentation for carousel and in-app announcement notifications (#35820)
  • feat: optimizes image used for metamask shield settings (#35829)
  • feat: redesigns unified swaps quote card (#35778)
  • feat: adds rename account feature for multichain accounts (#35741)
  • feat: adds view to reveal account group private keys (#35719)
  • feat: adds support for the network selector in BIP-44 account groups (#35579)
  • feat: implements recipient validation and resolutions for Solana and EVM accounts (#35744)
  • feat: enables account groups in dapp connection flow (#35513)
  • feat: removes getting started page, terms of use and adds footer for terms of use in login (#35555)
  • feat: adds initial smart account page routing for multichain accounts (#35665)
  • feat: shows connected network icon (#35657)
  • feat: adds support to Solana tokens with multiplier (#35695)
  • feat: adds search functionality to the multichain account list (#35616)
  • feat: adds QR code modal for sharing account addresses (#35454)
  • feat: adds Acala/Karura logo, updates bufferMultiplier (#33547)
  • feat: improves how balance is fetched for various tokens in new send flow (#35640)
  • feat: adds tooltip for url trust signal badges (#35459)
  • feat: adds perp push notification translations (#35621)
  • feat: runs alignment mechanism at the appropriate time so that user's multichain accounts contain all the necessary internal accounts when user wants to use them (#35190)
  • feat: removes network is busy alert (#34827)
  • feat: adds Add Wallet button to account list page that opens modal with import options (#35536)
  • feat: adds Settings > Transaction Shield UI (#35352)
  • feat: adds SRP backup process to multichain account details (#35518)
  • feat: adds dedicated Add Wallet page for private key import with proper routing (#35543)
  • feat: adds MetaMask shield entry point modal (#35347)
  • feat: adds designs for amount input (#35510)
  • feat: adds max button to amount page (#35474)
  • feat: adds metametrics toggle and delete metametrics data button in default settings (#36275)