A Crypto Wallet for Binance Chain, Binance Smart Chain and Ethereum With the Binance Chain browser extension you can send and receive funds on Binance Chain, Binance Smart Chain and Ethereum, and cross-chain transfers between both of Binance’s blockchains. The extension can also integrate with other Binance Chain products for authentication and transaction signing without providing access to your private keys, which are stored securely within the extension’s storage space and encrypted with your password. To make this integration possible, the extension needs to add code to handle the communication between web apps you open in your tabs and the extension itself. This is why the extension requires the permission to access any webpage.