MetaMask Legacy Web3 by danfinlay, rekmarks

Adds MetaMask's legacy window.web3 API to your browser

4.3 (164 reviews)

1,429 Users

You'll need Firefox to use this extension

Download Firefox and get the extension

Download file

About this extension

The MetaMask extension provides an API to websites you visit so they can interact with the blockchain. In the past, we used to provide a complementary API known as window.web3. As of December 2020, we stopped injecting window.web3, which improves security and performance, but can break older and unmaintained websites. Using this extension in combination with the MetaMask wallet enables you to use those older sites as before.

Developer comments

GitHub: https://github.com/MetaMask/legacy-web3-extension

Depends on: https://github.com/MetaMask/legacy-web3

Rated 4.3 by 164 reviewers

120

Release notes for 1.0.2

No user-facing changes in this version.

Required permissions: