Understanding Trezõr® brïdge®
Trezõr® brïdge® acts as a local bridge between your Trezor hardware wallet and web or desktop apps, enabling secure communication over USB/WebUSB. It replaces older plugins and provides a seamless, safe connection to modern Web3 interfaces.
Why Use Trezõr® brïdge®
- Browser security: Modern browsers restrict direct USB access; Bridge mediates safely.
- Cross-platform: Works on Windows, macOS, and Linux seamlessly.
- User-friendly: Avoids extensions and complex drivers.
Security Model
Bridge never accesses keys; signing always occurs on the Trezor device. Key security features:
- Local-only communication (127.0.0.1)
- Origin verification displayed on device
- Minimal privileges — only USB/IPC handling
Installation & Setup
- Download from the official Trezor website; verify domain.
- Run installer; Bridge creates a local service for app connections.
- Open browser or Suite; approve device connection when prompted.
Linux users may need udev rules for USB access; follow installer guidance or documentation.
Developer Integration
Use Trezor Connect library or HTTP endpoints to interact with Bridge:
- Include
trezor-connect
in your Web3 app. - Prompt user to connect device; confirm actions on Trezor screen.
- Handle device responses and errors carefully.
// Example TrezorConnect.getFeatures().then(features => console.log(features)) .catch(err => console.error('Error', err));
Privacy & Best Practices
- Do not enter recovery seeds; Bridge never needs them.
- Prefer desktop Suite or air-gapped setups for privacy.
- Confirm web app origin on device before signing.
- Keep Bridge and firmware updated; delay non-critical updates for cold-storage devices.
Advanced Usage
Automation and headless usage (CI/CD) are possible but risky. Never store recovery seeds in scripts; limit signing to auditable, human-approved workflows.
Troubleshooting
- Check Bridge service icon; start manually if not running.
- Ensure USB cable supports data transfer.
- Remove conflicting drivers (Windows) or set udev rules (Linux).
- Verify browser permissions and device unlock.
FAQ
- Q: Is Bridge mandatory? A: Yes for most browser-based Web3 apps.
- Q: Can Bridge sign? A: No, signing is only on the device.
- Q: Safe on shared computers? A: Prefer dedicated machines for high-value keys.