Trezor Bridge is a communication tool that enables the interaction between your Trezor hardware wallet and compatible web-based applications or interfaces. In simpler terms, it acts as a secure connector between your Trezor device and your computer’s browser, facilitating safe data exchange without compromising the wallet's integrity or private keys.
Launched by SatoshiLabs, the creators of Trezor, Bridge was designed to replace the older Google Chrome extension, ensuring broader compatibility across all major browsers like Firefox, Edge, and Safari. As Chrome and other browsers began restricting access to native USB devices for security reasons, Trezor Bridge became a vital component for Trezor users.
The primary role of Trezor Bridge is to enable secure communication between the browser and your Trezor device. It ensures that all data sent to or from your wallet is encrypted and verifiable. Without the Bridge, your browser would not be able to detect or interact with your Trezor hardware wallet.
Here’s why Trezor Bridge is essential:
Trezor Bridge operates as a background service on your operating system. Once installed, it listens for communication requests from your browser-based Trezor interface, such as Trezor Suite (Web). When you connect your Trezor wallet and initiate a transaction or access data, the Bridge acts as the trusted intermediary to process that request safely and securely.
This communication happens locally on your device, which means your private keys never leave your hardware wallet. Trezor Bridge merely transmits the necessary commands and retrieves responses from the device, ensuring the process remains trustless and secure.