What is Trezor Bridge?
Trezor Bridge is a background software utility developed by SatoshiLabs to allow seamless communication between your Trezor hardware wallet and web applications like Trezor Wallet or Trezor Suite (Web version). It acts as a secure connection layer between your browser and your Trezor device, ensuring that transactions can be safely signed and confirmed without exposing private keys.
Without Trezor Bridge, most browsers would not be able to directly interface with your hardware wallet. It’s a critical component for using Trezor through a browser—especially if you prefer the web version of Trezor Suite.
Why You Need Trezor Bridge
- Browser Compatibility: Enables Trezor wallet use in Chrome, Firefox, Edge, and other modern browsers.
- Secure Communication: Facilitates encrypted communication between your browser and Trezor device.
- No Drivers Needed: Replaces the need for manual USB drivers on most systems.
- Lightweight & Background: Runs silently in the background after setup—no interface required.
- Required for Trezor Wallet: Web-based Trezor apps rely on Bridge to detect your device.
Supported Platforms
Trezor Bridge is available for the following operating systems:
- Windows (7, 8, 10, 11)
- macOS (Intel and Apple Silicon)
- Linux (Ubuntu, Debian, Fedora, and others)
Note: On Linux, you may need to install additional udev rules for USB communication.
How to Download and Install Trezor Bridge
- Go to the official Trezor Bridge download page: https://trezor.io/bridge
- Select the version for your operating system.
- Download the installer and run the setup file.
- Follow on-screen instructions to complete the installation.
- Restart your browser after installation.
- Visit Trezor Suite Web to connect your device.
How It Works
Once installed, Trezor Bridge runs silently in the background. When you open a web app like Trezor Wallet or Trezor Suite (Web), the browser communicates with the Bridge through a local port. The Bridge then interacts with your connected Trezor device to initiate operations such as:
- Device detection
- Transaction signing
- Firmware updates
- Wallet backups and recovery
No data is sent to external servers during this process unless explicitly required (e.g., checking balance from a blockchain explorer).
Browser Compatibility
Trezor Bridge supports the following web browsers:
- Google Chrome
- Mozilla Firefox
- Microsoft Edge
- Brave (with Shields down)
- Chromium-based browsers
Note: Safari and mobile browsers are not supported due to WebUSB limitations.
Troubleshooting Tips
- Device Not Recognized? Restart your browser and reconnect your Trezor device.
- Bridge Not Detected? Ensure it’s running in the background. Reinstall if necessary.
- Linux Users: Install udev rules: Guide here
- Antivirus Issues: Whitelist the Bridge if your antivirus blocks it.
- Use Desktop App Instead: If issues persist, consider using the Trezor Suite Desktop.
Frequently Asked Questions
Is Trezor Bridge safe?
Yes. It’s developed by Trezor's official team, is open source, and securely facilitates local communication only. It doesn’t access or transmit private keys.