Trezor Bridge Download

What Is Trezor Bridge?

Trezor Bridge is a small background application developed by SatoshiLabs that enables your Trezor hardware wallet (e.g. Trezor Model T or Trezor One) to communicate with web browsers, decentralized applications (dApps), and supported services securely. :contentReference[oaicite:0]{index=0}

Instead of relying on legacy USB drivers or browser plugins, Bridge acts as a local proxy, exposing a secure API on your computer (usually bound to localhost) that higher‑level software (like Trezor Suite Web or other wallet front‑ends) can use. Importantly, private keys never leave your Trezor device — signing always happens on the hardware itself. :contentReference[oaicite:1]{index=1}

Why Do You Need Trezor Bridge?

Modern browsers support WebUSB, which allows direct communication with USB devices, but not all browsers or platforms implement that support fully or reliably. In cases where WebUSB is not available or when the browser setup is restrictive, Bridge ensures a consistent connection. :contentReference[oaicite:2]{index=2}

If you're using the Trezor Suite Web interface (suite.trezor.io) on a browser that doesn't natively support WebUSB, the system will often prompt you to download Bridge. :contentReference[oaicite:3]{index=3}

Note: The Trezor Suite desktop application does *not* require Bridge — it connects directly via USB. :contentReference[oaicite:4]{index=4}

How to Download & Install Bridge

Follow these steps to get Bridge up and running:

1. Go to the official Trezor download or start page (e.g. trezor.io/start). :contentReference[oaicite:5]{index=5}
2. Choose the correct installer for your operating system (Windows, macOS, Linux). :contentReference[oaicite:6]{index=6}
3. Run the installer and follow the on‑screen steps. On macOS, you may have to allow installation via Security & Privacy settings if Gatekeeper intervenes. :contentReference[oaicite:7]{index=7}
4. After installation, restart your web browser so it picks up Bridge. :contentReference[oaicite:8]{index=8}
5. Connect your Trezor device using your USB cable and complete any prompts to pair or approve the device. :contentReference[oaicite:9]{index=9}

Security & Best Practices

Bridge is designed as a minimal, local tool. It runs only on your machine and binds to local interfaces (not the public internet). :contentReference[oaicite:11]{index=11}

Private keys, seed phrases, and signing operations remain on the Trezor hardware — Bridge *only* relays authorized requests. :contentReference[oaicite:12]{index=12}

However, some precautions are essential:

• Verify the download using checksums or PGP signatures when available.
• Do not install Bridge from unknown or third‑party sites.
• Always check the origin domain in browser prompts before approving connections.
• Keep Bridge, Trezor Suite, and your device firmware up to date. :contentReference[oaicite:13]{index=13}

Troubleshooting Common Issues

If Bridge seems not to work or your browser doesn't detect the Trezor, try the following:

• Restart Bridge (via system tray or service) or reboot the computer. :contentReference[oaicite:14]{index=14}
• Use a different USB cable or port (some cables do not carry data). :contentReference[oaicite:15]{index=15}
• Check browser permissions. Some browsers require explicit USB device access permission. :contentReference[oaicite:16]{index=16}
• Clear browser cache or try a different browser. :contentReference[oaicite:17]{index=17}
• On macOS, ensure you allowed the installer under “Security & Privacy” if blocked. :contentReference[oaicite:18]{index=18}
• Uninstall older versions of Bridge first, then reinstall the latest build. :contentReference[oaicite:19]{index=19}

If none of the above works, consult the official Trezor support or community forums. Always avoid sharing your recovery seed or private key details.

FAQ

Q: Is Bridge required for all setups?
A: No. If your browser supports WebUSB natively and you're okay using Trezor Suite Web, Bridge may not be needed. But for compatibility across browsers and systems, it ensures smooth connectivity. :contentReference[oaicite:20]{index=20}

Q: Does Bridge have access to my private keys?
A: No — Bridge is only a relay. Your private keys and signing always stay within the Trezor device. :contentReference[oaicite:21]{index=21}

Q: Can I uninstall Bridge?
A: Yes. Use your OS’s standard uninstall method. After removal, your browser‑based Trezor connections may stop working (unless you switch to a browser with WebUSB support). :contentReference[oaicite:22]{index=22}