Trezor Bridge is an essential software component that allows your Trezor hardware wallet to communicate safely with desktop and browser-based applications. Below is a detailed guide on its purpose, installation, security, and troubleshooting.
Trezor hardware wallets protect cryptocurrencies by keeping private keys offline. To interact with applications like Trezor Suite or web wallets, users need Trezor Bridge — a background service that facilitates communication between the wallet and host systems.
Modern browsers and operating systems limit direct USB communication for security. Trezor Bridge acts as a mediator, enabling secure interaction without exposing sensitive data or requiring risky permissions.
Trezor Bridge listens locally for requests from host applications and forwards them to your Trezor device over USB. Any signing or sensitive operation is displayed on your hardware wallet’s screen, requiring manual confirmation.
Always keep Trezor Bridge up to date by downloading updates from the official Trezor site. Updates ensure compatibility with new firmware and applications while improving security.
Close conflicting apps that may access USB, check firewall settings, and restart your system if needed.
Do I always need Bridge? Many web wallets require Bridge, but the Trezor Suite desktop app may communicate directly with devices on some systems.
Can Bridge access my private keys? No. Bridge only transports requests; your private keys remain secure inside your Trezor device.
Can Bridge run remotely? No. It is strictly a local service and should never be exposed to the internet.