What is Trezor Bridge?
Trezor Bridge is a lightweight local application that enables secure communication between your web browser (or compatible desktop app) and your Trezor hardware wallet. It provides a small, trusted bridge so websites can send requests to your device while keeping private keys isolated on the Trezor itself.
Quick safety checklist
- Download Bridge only from the official Trezor website.
- Install on a personal computer you control — avoid public machines.
- Keep your Trezor firmware up to date via Trezor Suite before connecting to third-party sites.
- Never type your recovery seed into a computer or web form.
Download & install (quick steps)
- Visit the official Trezor site and choose the Bridge download for your OS (Windows, macOS, Linux).
- Run the installer and follow system prompts. Administrator rights may be required.
- After installation, Bridge runs in the background and listens for requests from supported browsers or apps.
If a browser prompts for permission to access the local bridge, allow it only when you initiated the connection.
Connecting to a web wallet
- Open the web wallet or dApp that supports Trezor.
- Choose Connect hardware wallet and select Trezor.
- Your browser will route the request to Trezor Bridge; confirm the connection on your device when prompted.
- Always verify the address and transaction details shown on the Trezor device before approving operations.
Troubleshooting — common fixes
- Bridge not found: Reinstall Bridge, restart your browser, and reconnect the device using a known good USB cable (avoid charge-only cables).
- No device detected: Ensure the Trezor is unlocked and the PIN entered; try a different USB port and disable USB hubs.
- Installation errors: Re-download the installer from the official site and temporarily disable overly aggressive antivirus during install.
Best practices
- Confirm every transaction on the device screen — do not rely solely on browser previews.
- Use Trezor Suite for firmware updates and device management; update before using new integrations.
- Install Bridge only on trusted machines, and remove it from devices you no longer control.
Quick reference table
| Action | Where | Tip |
|---|---|---|
| Install Bridge | Official Trezor site | Verify download |
| Connect to web wallet | Browser + Bridge | Approve on-device |
| Update firmware | Trezor Suite | Do before third-party use |
Need more help?
Refer to official Trezor documentation or the Trezor community support pages for in-depth guides and troubleshooting articles. For critical operations, always follow official instructions.