Official Trézor® Bridge®®

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Trezor Bridge – Secure Communication Layer for Trezor Devices

Trezor Bridge is a lightweight background application that enables secure communication between your Trezor hardware wallet and supported web browsers. It acts as a bridge (as the name suggests) between your Trezor device and web-based wallet interfaces, ensuring encrypted and stable connectivity.

While newer versions of Trezor Suite often reduce the need for Bridge, it is still essential for certain browser-based interactions and legacy setups.

What Is Trezor Bridge?

Trezor Bridge is software that runs quietly in the background on your computer. Its primary function is to:

  • Allow your browser to detect your Trezor device
  • Enable secure communication between device and web interface
  • Facilitate transaction signing and wallet access
  • Maintain encrypted device communication

Without Bridge, some browsers may not recognize your hardware wallet properly.

Why Trezor Bridge Is Important

Modern browsers limit direct USB communication with external hardware devices for security reasons. Trezor Bridge solves this limitation by acting as a trusted local communication service.

It ensures:

🔐 Secure data transfer
🖥 Smooth browser compatibility
⚙️ Stable device detection
🛡 Protection from unauthorized access

Bridge does not store your private keys, recovery seed, or funds. It only facilitates communication.

When Do You Need Trezor Bridge?

You typically need Trezor Bridge if:

  • You are using the web version of Trezor Suite
  • Your browser does not detect your Trezor device
  • You are accessing certain third-party services that require direct device communication
  • You encounter connection errors

For desktop Trezor Suite users, Bridge may not be required because Suite includes built-in communication drivers.

How to Install Trezor Bridge

  1. Visit the official Trezor website.
  2. Navigate to the download section.
  3. Select Trezor Bridge for your operating system (Windows, macOS, Linux).
  4. Install and restart your browser.

After installation, Bridge runs automatically in the background when needed.

How Trezor Bridge Works

When you connect your Trezor device:

  1. The browser sends a request.
  2. Trezor Bridge receives and processes it locally.
  3. The request is securely passed to the device.
  4. You confirm actions directly on your Trezor hardware wallet.

All sensitive operations still require confirmation on the physical device screen.

Security of Trezor Bridge

Trezor Bridge is designed with security as a priority:

  • No storage of private keys
  • No access to recovery seed
  • Encrypted local communication
  • Requires physical device confirmation

Even if your computer is compromised, transactions cannot be approved without pressing confirmation buttons on your Trezor device.

Common Troubleshooting Tips

If your Trezor is not detected:

  • Ensure Trezor Bridge is installed
  • Restart your browser
  • Try a different USB cable or port
  • Update your browser
  • Restart your computer

If issues persist, reinstalling Bridge often resolves detection problems.

Trezor Bridge vs Trezor Suite

  • Trezor Suite Desktop: Standalone application, often does not require Bridge.
  • Web Wallet Access: May require Trezor Bridge for communication.

For maximum stability and security, many users prefer the desktop version of Trezor Suite.

Final Thoughts

Trezor Bridge plays a crucial role in enabling secure communication between your hardware wallet and web-based interfaces. It does not manage funds or store sensitive information — it simply ensures that your device can safely connect and function within your browser environment.

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