About this extension

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
NFTs
erc20
tokens
ICOs
erc721
NFTs
ERC 1155
...and more!

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Release notes for 10.18.3

### Changed
- Enhance approval screen title logic ([#15406](https://github.com/MetaMask/metamask-extension/pull/15406))

### Fixed
- Prevent confirm screen from showing method name from contract registry for transactions created within MetaMask ([#15472](https://github.com/MetaMask/metamask-extension/pull/15472))
- Ensure smart contract interactions are properly represented on the confirm screen ([#15446](https://github.com/MetaMask/metamask-extension/pull/15446))
- Fix update of max amount in send flow after network switch([#15444](https://github.com/MetaMask/metamask-extension/pull/15444))
- Fix to ensure user can access full screen editing of network forms from the popup ([#15442](https://github.com/MetaMask/metamask-extension/pull/15442))
- Possibly fix bug which crashes firefox on startup after upgrade to v10.18.1 ([#15425](https://github.com/MetaMask/metamask-extension/pull/15425))
- Fix blocking of editing transactions that had a contract address recipient but no tx data ([#15424](https://github.com/MetaMask/metamask-extension/pull/15424))
- Fix error that could leave the app in a stuck state when quickly moving between the send screen and other screens ([#15420](https://github.com/MetaMask/metamask-extension/pull/15420))
- Fix send screen for Optimism network ([#15419](https://github.com/MetaMask/metamask-extension/pull/15419))
- Fix to ensure the correct balance is used when validating send amounts ([#15449](https://github.com/MetaMask/metamask-extension/pull/15449))
- Fix error that makes app unusable after clicking activity list items for token approval transactions ([#15398](https://github.com/MetaMask/metamask-extension/pull/15398))

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