What is a browser extension wallet?
A browser extension wallet is a wallet installed in the browser, such as Chrome or Brave. It adds a provider to web pages so dApps can read your address, request a connection and ask for signatures.
Why it matters
Extensions are the most convenient way to use DeFi, and the most exposed. A traditional extension keeps an encrypted key in the browser profile, next to every other extension and every site you visit. A malicious update or a compromised computer can reach it.
How Locker Protocol Wallet handles it
Locker Protocol Wallet is an extension for Chrome and Brave that announces itself to dApps like any other but stores no private key. Each request becomes a QR code signed on Locker Vault, an offline device.
Questions
Are browser extension wallets safe?
The software can be well built and still run on a computer you cannot fully trust. The risk depends on where the key is: in the browser, a compromise can reach it; on a separate offline device, it cannot.
How does a dApp find my extension wallet?
Through standards: on EVM networks the extension announces itself with EIP-6963, on Solana and Sui through the Wallet Standard, on Aptos through AIP-62. The site lists every wallet it finds in its connect menu.