> For the complete documentation index, see [llms.txt](https://meiuttmackextnsion.gitbook.io/us/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://meiuttmackextnsion.gitbook.io/us/metamask-r-extension.md).

# Metamask® % Extension

Introduction to MetaMask Browser Extension MetaMask is a browser extension that serves as both a cryptocurrency wallet and a gateway to the world

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