Trezor Bridge® — Secure Connection Between Your Device and Browser

Trezor Bridge® is a lightweight communication tool that enables smooth and secure interaction between your Trezor® hardware wallet and supported web browsers. It acts as a background service that allows your computer to recognize and communicate with your Trezor device when using web-based applications like Trezor Suite Web or when starting your device setup at Trezor.io/start.

Unlike browser extensions used in the past, Trezor Bridge runs quietly in the background after installation, providing a more stable and secure connection. It ensures that data sent between your hardware wallet and browser remains protected while maintaining seamless functionality.

What Is Trezor Bridge?

Trezor Bridge is software designed to replace older browser communication methods. Modern browsers have stricter security policies, which can limit direct USB communication with hardware devices. Trezor Bridge solves this issue by creating a secure interface between your Trezor wallet and web applications.

Once installed, it automatically detects your connected device and allows trusted platforms like Trezor Suite to interact with it without interruptions.

Why Trezor Bridge Is Important

When you connect your Trezor device to your computer and access web-based wallet management tools, communication must be secure and reliable. Trezor Bridge ensures:

Encrypted communication between device and browser

Stable USB connectivity

Automatic device recognition

Improved compatibility across browsers

Smooth firmware installation and updates

Without Trezor Bridge, your browser may not properly detect your hardware wallet.

How to Install Trezor Bridge

Installing Trezor Bridge is simple and only takes a few minutes:

Visit the official setup page at Trezor.io/start.

Download the version compatible with your operating system (Windows, macOS, or Linux).

Run the installer and follow on-screen instructions.

Restart your browser after installation.

Once installed, Trezor Bridge runs automatically in the background. No additional configuration is required.

How Trezor Bridge Works with Trezor Suite

If you use the desktop version of Trezor Suite, Trezor Bridge is typically not required because the desktop application includes built-in communication tools. However, when using the web version of Trezor Suite, Trezor Bridge ensures your browser can securely communicate with your device.

For users accessing wallet features through supported browsers, Bridge provides the essential link between hardware-level security and online functionality.

Security and Privacy

Trezor Bridge does not store private keys, passwords, or sensitive wallet information. All critical cryptographic operations occur directly on your Trezor hardware wallet. Bridge only facilitates communication — it does not control or manage your funds.

Your private keys always remain offline, protected by:

PIN protection

Recovery seed backup

Optional passphrase security

On-device transaction confirmation

This architecture ensures that even if your computer is compromised, unauthorized transactions cannot be approved without physical confirmation on your Trezor device.

When Do You Need Trezor Bridge?

You typically need Trezor Bridge when:

Using Trezor Suite Web

Accessing wallet features through a browser

Installing firmware via a web interface

Experiencing device detection issues in browser mode

If you primarily use the desktop version of Trezor Suite, Bridge may not be necessary.

Final Thoughts

Trezor Bridge plays a crucial supporting role in the Trezor ecosystem. While it operates quietly in the background, it ensures reliable and secure communication between your hardware wallet and browser-based applications.