Trezor Bridge

Secure communication between your Trezor hardware wallet and web browser

What is Trezor Bridge?

Trezor Bridge is a lightweight background service that enables secure communication between your Trezor hardware wallet and supported web browsers. It acts as a facilitator, allowing your Trezor device to interact with web-based cryptocurrency applications while maintaining the highest security standards.

Unlike browser extensions, Trezor Bridge runs as a separate process on your computer, providing an additional layer of security by isolating the communication channel between your hardware wallet and web applications.

Security First Design

Trezor Bridge is designed with security as the primary consideration. It establishes a local connection between your Trezor device and browser, ensuring that your private keys never leave the hardware wallet and are never exposed to your computer or the internet.

Key Features

Automatic Detection

Trezor Bridge automatically detects when your Trezor device is connected and establishes a secure communication channel without requiring manual configuration.

Cross-Platform Compatibility

Available for Windows, macOS, and Linux operating systems, ensuring you can use your Trezor device regardless of your preferred platform.

Background Operation

Runs quietly in the background, only activating when needed to facilitate communication between your Trezor and web applications.

Automatic Updates

Receives security updates and feature improvements automatically, ensuring you always have the latest protection.

How Trezor Bridge Works

Communication Architecture

Trezor Device
Trezor Bridge
Web Browser

Trezor Bridge creates a secure local connection between your physical Trezor hardware wallet and web-based applications, ensuring that sensitive operations like transaction signing happen in the isolated environment of your hardware wallet.

Communication Flow

When you initiate an action in a supported web application (like sending cryptocurrency), the request is passed to Trezor Bridge, which forwards it to your connected Trezor device. The device then displays the transaction details on its screen for your verification. Once you confirm the transaction on the device itself, the signed transaction is sent back through Trezor Bridge to the web application.

This process ensures that your private keys remain securely stored in the hardware wallet and are never exposed to your computer or the internet during any transaction.

Compatibility

Supported Browsers

Google Chrome
Mozilla Firefox
Microsoft Edge
Brave
Opera

Supported Operating Systems

Windows 10+
macOS 10.14+
Linux (Ubuntu, Fedora)

Trezor Device Support

Trezor Bridge is compatible with all Trezor hardware wallet models, including Trezor One and Trezor Model T, ensuring that all users can benefit from secure browser communication regardless of their device.

Security Advantages

Isolated Execution Environment

By running as a separate process rather than a browser extension, Trezor Bridge operates in an isolated environment that is less vulnerable to browser-based attacks or malicious extensions.

No Private Key Exposure

Your private keys never leave the secure element of your Trezor hardware wallet. All cryptographic operations, including transaction signing, occur within the device itself.

Verified Transaction Details

Transaction details are displayed on your Trezor device's screen for verification before signing, protecting you from malicious software that might alter transaction details on your computer.

Automatic Security Updates

Trezor Bridge receives regular security updates that are automatically applied, ensuring protection against newly discovered vulnerabilities without requiring user intervention.