Understanding Trezor® Bridge

Trezor Bridge is an essential communication service that enables secure interaction between web browsers and your Trezor® hardware wallet. This background application facilitates the Trezor Bridge login process by creating a secure channel for data exchange, allowing you to access your Trezor Wallet through web-based interfaces while maintaining the highest security standards.

Unlike browser extensions that require frequent updates and pose potential security risks, Trezor Bridge operates as a standalone system service with minimal resource requirements. It automatically detects when your Trezor® device connects and establishes encrypted communication with supported web applications, including the Trezor Suite web interface and third-party services like MyEtherWallet and MetaMask.

Platform-Specific Installation

Windows Installation

Download: .exe installer package
Process: Automatic installation as Windows service
Compatibility: Windows 10, 11 (32-bit & 64-bit)
Location: Runs as background service

macOS Installation

Download: .pkg installer package
Process: System-level daemon installation
Compatibility: macOS 10.14 and later
Location: Runs as launchd service

Linux Installation

Download: Distribution-specific packages
Process: Manual installation via package manager
Compatibility: Ubuntu, Fedora, Debian
Location: Runs as systemd service

Browser Compatibility

🌐

Google Chrome

Full Support

🦊

Mozilla Firefox

Full Support

🛡️

Brave Browser

Full Support

🧭

Microsoft Edge

Full Support

Installation and Setup Process

Step-by-Step Installation Guide

  1. 1Download the appropriate Trezor Bridge package for your operating system
  2. 2Run the installer with administrator privileges
  3. 3Follow the installation wizard prompts
  4. 4Restart your web browser after installation
  5. 5Connect your Trezor® device via USB cable
  6. 6Visit a supported web application to test connectivity
Automatic Detection: Once installed, Trezor Bridge operates transparently in the background. When you connect your device and visit a supported website, the Trezor Bridge login process automatically initiates, detecting your device and establishing a secure communication channel without requiring manual intervention.

When Do You Need Trezor Bridge?

Scenario Requires Bridge Alternative Solution
Using Trezor Suite Web ✓ Required Desktop Suite Application
Third-party Web Wallets ✓ Required Direct Desktop Integration
Desktop Trezor Suite ✗ Not Required Integrated Communication
Mobile App Usage ✗ Not Required Direct Server Connection

Troubleshooting Common Issues

Connection Problems

Browser Detection Issues

Frequently Asked Questions

Do I need Trezor Bridge if I use the desktop Suite application? +

No, the desktop Trezor Suite application includes integrated communication components and does not require Trezor Bridge. The Bridge is specifically designed for web-based access through browsers. If you exclusively use the desktop application from trezor suite download, you can safely skip Bridge installation unless you also plan to use web-based services.

Why does Bridge installation require administrator privileges? +

Trezor Bridge requires administrator access to install as a system service that runs in the background, independent of user sessions. This ensures the service remains available to all browser instances and user accounts on the computer. The elevated privileges are only needed during installation - the service itself runs with standard user permissions for security.

Can I use multiple Trezor devices with one Bridge installation? +

Yes, a single Trezor Bridge installation supports multiple Trezor® devices simultaneously. The service automatically detects all connected devices and manages communication with web applications. You can switch between devices or use multiple devices with different web interfaces without requiring additional Bridge installations or configuration changes.

What's the difference between Bridge and browser extensions? +

Trezor Bridge is a system-level service that provides more reliable and secure communication compared to browser extensions. Extensions are limited by browser security sandboxes, require frequent updates, and can be affected by browser crashes. Bridge operates independently, provides better performance, and offers more consistent device detection across all supported browsers.

How do I know if Bridge is running correctly? +

On Windows, check "Trezor Bridge" in Task Manager services. On macOS, look for "trezord" in Activity Monitor. On Linux, check with "systemctl status trezord". The easiest test is to connect your Trezor® device and visit the Trezor Suite web interface - if the Trezor Bridge login process detects your device automatically, Bridge is functioning correctly.

Is Bridge required for the mobile app? +

No, the trezor suite app for mobile devices connects directly to Trezor's servers and does not require Trezor Bridge. The mobile app operates as a watch-only companion that synchronizes with your portfolio data through secure server connections, completely independent of the Bridge service used for web browser communication.