MetaMask is a widely used self-custodial cryptocurrency wallet that enables users to manage their digital assets and interact with decentralized applications (dApps) directly from their browser or mobile device.
Important Consideration: In mid-2025, some users reported excessive disk activity caused by a bug in the MetaMask browser extension. This led to high SSD usage. MetaMask (ConsenSys) acknowledged the issue and a fix is being developed. If you experience this, consider temporarily uninstalling the extension.
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For more information or to get started with MetaMask, visit the official website: metamask.io