What Is Trezor Bridge?
Trezor Bridge is a lightweight background service that enables secure communication between your Trezor hardware wallet and web-based interfaces. It acts as a trusted connector, allowing browsers and supported applications to detect your device and exchange data safely.
Without Trezor Bridge, most modern browsers would not be able to communicate directly with your hardware wallet. The Bridge ensures that all interactions follow strict security rules while maintaining a smooth user experience.
Why Trezor Bridge Is Important
Web browsers are intentionally restricted environments. Trezor Bridge works around these limitations by running locally on your system and securely passing messages between the browser and your Trezor device.
- Enables device detection in supported browsers
- Provides secure, encrypted communication
- Prevents unauthorized access to the hardware wallet
- Works silently in the background
How Trezor Bridge Works
Once installed, Trezor Bridge runs as a background service on your computer. When you visit a supported wallet interface, the browser sends a request to the Bridge, which then communicates directly with the Trezor device.
All sensitive operations still require physical confirmation on the Trezor device screen, ensuring that no transaction or login can occur without your explicit approval.
When Do You Need Trezor Bridge?
Trezor Bridge is primarily required when using Trezor with web-based wallets or services. Desktop applications like Trezor Suite often include built-in communication and may not require a separate Bridge installation.
- Using Trezor with browser-based wallets
- Connecting to third-party crypto services
- Managing assets through web interfaces
Security and Privacy Considerations
Trezor Bridge does not store private keys, recovery seeds, or personal data. It only transfers encrypted messages between your browser and the hardware wallet. Even if your computer is compromised, attackers cannot approve actions without physical access to the device.
Troubleshooting Common Issues
If your browser does not recognize your Trezor device, ensure that Trezor Bridge is running and that no conflicting wallet software is active. Restarting the service or reconnecting the device often resolves common detection problems.