The secure communication layer between your Trezor device and web browsers
Trezor Bridge is an essential background service that enables secure communication between your Trezor hardware wallet and supported web applications. It acts as a trusted connection layer, allowing browsers to interact with your device without exposing private keys or sensitive data. For users who access their wallet through a web interface, Trezor Bridge plays a critical role in maintaining security and functionality.
Trezor Bridge is lightweight software that runs quietly in the background on your computer. Its primary purpose is to establish a secure link between your Trezor hardware wallet and browser-based wallet interfaces. Without Trezor Bridge, many web platforms would not be able to detect or communicate with your device.
Unlike browser extensions, Trezor Bridge operates independently, reducing the risk of malicious extensions interfering with your wallet connection.
Modern browsers limit direct access to USB devices for security reasons. Trezor Bridge solves this limitation by acting as a trusted intermediary. It ensures that only authorized requests from supported applications are passed to your Trezor device, preserving the integrity of all wallet operations.
Once installed, Trezor Bridge runs automatically when your system starts. When you connect your Trezor hardware wallet and visit a supported website, the browser sends a request to Trezor Bridge. The Bridge then communicates with your device and relays non-sensitive information back to the browser.
Any critical action, such as logging in or signing a transaction, must still be confirmed directly on the Trezor device screen. This ensures that no operation can occur without your physical approval.
Trezor Bridge is primarily required when accessing your wallet through web-based interfaces. While Trezor Suite Desktop includes its own communication layer, users relying on browser-based tools may need Trezor Bridge to ensure smooth device detection and interaction.
Installing Trezor Bridge is a straightforward process. Users are guided to download the correct version for their operating system and complete a simple installation. Keeping Trezor Bridge updated is important, as updates may include security improvements and compatibility enhancements.
Compared to browser extensions or generic USB drivers, Trezor Bridge offers a more controlled and secure communication method. It minimizes attack surfaces by limiting browser permissions and keeping sensitive interactions isolated from potentially vulnerable extensions.
If your browser fails to detect your Trezor device, restarting Trezor Bridge or reconnecting the USB cable may resolve the issue. Ensuring that no conflicting wallet software is running simultaneously can also improve reliability.
Trezor Bridge is a vital component for users who manage their hardware wallet through web interfaces. By providing a secure and reliable communication layer, it ensures that your Trezor device can interact safely with modern browsers. When used alongside official Trezor tools, Trezor Bridge helps maintain the highest standards of cryptocurrency security.