MetaMask Legacy Web3

MetaMask Legacy Web3

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

What is MetaMask Legacy Web3?
MetaMask Legacy Web3 is a crucial Firefox extension designed to restore interaction between older websites and the blockchain through the reintroduction of the window.web3 API. The window.web3 API was previously injected by MetaMask but was discontinued in Dec 2020 to promote security and performance enhancements. While this move boosted both aspects, it created interaction issues for older and unmaintained websites. However, through this add-on, users can seamlessly use these websites just like before.
By: danfinlay
Users: 1,824 ▼ -8
Version: 1.0.2 (Last updated: 2021-01-19)
Creation date: 2020-12-10
Weekly download count: 87
Firefox on Android: No
Risk impact: Moderate risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
Size: 99.63K
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
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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.

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.
      Most mentioned
        Recent reviews
        by CipherKey, 2024-05-23

        by CipherKey, 2024-05-23

        by CipherKey, 2024-05-23
        View all user reviews
        Risk impact

        MetaMask Legacy Web3 may not be safe to use and it requires some risky permissions. Exercise caution when installing this add-on. Review carefully before installing.

        Risk likelihood

        MetaMask Legacy Web3 has earned a fairly good reputation and likely can be trusted.

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