Trezor Bridge is a lightweight background service that enables secure communication between your Trezor® hardware wallet and web browsers. It acts as a translator that allows JavaScript in web browsers to interact with your USB-connected Trezor® device without compromising security.
Unlike browser extensions that might have security vulnerabilities, Trezor Bridge runs as a separate application on your computer, creating a safe channel for data exchange while keeping your private keys isolated within your Trezor® device at all times.
Web browsers have built-in security restrictions that prevent websites from directly accessing USB devices. Trezor Bridge solves this challenge by:
Note: If you use the desktop version of Trezor Suite, you don't need Trezor Bridge as it has built-in USB communication capabilities.
Visit the official Trezor Bridge download page. The website will automatically detect your operating system and provide the appropriate version for Windows, macOS, or Linux.
Run the installer and follow the on-screen instructions. The process typically takes just a few minutes and requires minimal user interaction.
After installation, restart your web browser to ensure it detects Trezor Bridge. You can now access your Trezor® wallet through web interfaces.
Connect your Trezor® device and visit trezor.io/start to verify the connection is working properly.
Security Note: Always download Trezor Bridge only from the official Trezor website to avoid malicious software that could compromise your device.
While both tools enable communication with your Trezor® device, they serve different purposes:
For mobile users, the trezor suite app uses different communication methods (USB-OTG or Bluetooth) and doesn't require Bridge.
If you experience problems with Trezor Bridge:
Is Trezor Bridge necessary if I use the Trezor Suite desktop app?
No, the desktop version of Trezor Suite has built-in USB communication capabilities and doesn't require Trezor Bridge. Bridge is only needed for browser-based access to your Trezor® device.
Does Trezor Bridge work on all operating systems?
Trezor Bridge is available for Windows, macOS, and Linux. The installation process varies slightly between systems, but the functionality remains consistent.
Can Trezor Bridge compromise my security?
No, Trezor Bridge is designed with security in mind. It only facilitates communication and doesn't have access to your private keys, which remain secure within your Trezor® device at all times.
Why do I need to install Trezor Bridge instead of using a browser extension?
Browser extensions have broader permissions and can be more vulnerable to attacks. Trezor Bridge runs as a separate application with minimal privileges, reducing the attack surface while maintaining functionality.
How often does Trezor Bridge need to be updated?
Trezor Bridge updates are occasionally released to improve compatibility or address security issues. The application may notify you when updates are available, or you can check manually on the official website.
Can I use Trezor Bridge with other cryptocurrency wallets?
Trezor Bridge is specifically designed for Trezor® devices and the official Trezor Wallet interface. Other wallets may use different communication methods or their own bridge applications.