Trezor Bridge is a crucial background service that enables secure communication between web browsers and your TrezorĀ® hardware wallet. This lightweight application acts as a translation layer, allowing web-based interfaces like the Trezor Suite web version to interact with your physical device through USB connections while maintaining the highest security standards.
Trezor Bridge operates silently in the background, translating web application commands into USB device communications. When you perform a Trezor Bridge Login or connect your device, the bridge facilitates the secure data exchange that enables transaction signing, balance queries, and device management through browser-based interfaces.
Visit the web version of Trezor Suite at suite.trezor.io
Connect your TrezorĀ® device when prompted
The browser will automatically detect if Trezor Bridge is needed
Follow the on-screen instructions to download and install
Restart your browser and complete the Trezor Bridge Login process
If automatic installation fails, you can manually download Trezor Bridge from the official TrezorĀ® website. The installation package is small (typically under 10MB) and supports Windows, macOS, and Linux operating systems.
Trezor Bridge is specifically required for:
Trezor Bridge is NOT needed for:
Trezor Bridge maintains security by only allowing communication with verified TrezorĀ® domains. The service runs with minimal permissions and doesn't store sensitive data. However, for maximum security, consider using the desktop Trezor Suite app which eliminates browser-based attack vectors.
For new device setup via trezor.io/start, Trezor Bridge may be required to facilitate firmware installation and initial configuration. The setup portal will automatically guide you through the bridge installation process if needed.
No, the desktop Trezor Suite app (available via Trezor Suite download) has built-in device communication capabilities and doesn't require Trezor Bridge. The bridge is only necessary for web browser-based access to your TrezorĀ® device.
Web browsers have security restrictions that prevent direct USB device access. Trezor Bridge acts as a trusted intermediary that bypasses these restrictions while maintaining security through cryptographic verification and domain whitelisting.
Yes, when downloaded from the official TrezorĀ® website, Trezor Bridge is completely safe. It's open-source software that undergoes regular security audits. The bridge only communicates with verified TrezorĀ® domains and doesn't have access to your private keys or recovery seed.
On Windows, check for "Trezor Bridge" in the system tray. On macOS, look for it in the menu bar. On Linux, it runs as a background service. The most reliable test is connecting to the web Trezor Suite and verifying your device is detected during Trezor Bridge Login.
Yes, a single Trezor Bridge installation can handle multiple TrezorĀ® devices simultaneously. The bridge manages device connections independently, allowing you to switch between different hardware wallets or use multiple devices with the same web interface.
Browser updates can sometimes disrupt bridge functionality. The solution is usually to reinstall Trezor Bridge or restart the bridge service. If problems persist, try the desktop Trezor Suite app which doesn't rely on browser compatibility.