MetaMask Legacy Web3

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

MetaMask Legacy Web3 is a browser extension designed to restore MetaMask's legacy window.web3 API, which was discontinued in December 2020 to enhance security and performance. This API is crucial for older or unmaintained blockchain websites that still rely on the window.web3 interface to interact with the blockchain.

By installing this extension alongside your MetaMask wallet, you regain seamless compatibility with those legacy sites that would otherwise break due to the absence of the window.web3 API. This ensures continued access and interaction with decentralized applications using the older API standard, thereby enhancing your blockchain browsing experience.

User reviews

Users appreciate the MetaMask Legacy Web3 add-on for its usefulness, API functions, and user-friendly mascot. However, multiple reviews highlight issues including slow performance, security vulnerabilities with stolen coins, high gas fees, token display problems, and occasional download interruptions. The extension's blockchain search feature is a positive aspect, but overall user experience is affected by performance and security concerns.
Pros
  • The add-on is considered very useful and appreciated by some users.
  • It provides API functionality that some users find brilliant.
  • The cute fox mascot contributes positively to user experience.
  • It offers features like searching blockchains and browsing Dapps, which are somewhat valued.
Cons
  • The extension can be extremely slow and frustrating to use.
  • Users have experienced security issues such as coins being stolen.
  • High gas fees are a significant complaint among users.
  • Some tokens do not display correctly in the wallet, causing inconvenience.
  • Download interruptions and incomplete functionality are noted concerns.
Recent reviews
rewie account
by Serapio, 2024-08-24

这个插件太好用了吧~~~
by Gary, 2023-08-30

这个插件太好用了吧~~~
by Cecil, 2023-08-30
View all user reviews ›

Extension safety

Risk impact

MetaMask Legacy Web3 requires very minimum permissions.

Risk impact analysis details
  • High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
Risk likelihood

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

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
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