What is Trézor Bridge? Trezor Bridge is (or was) a small background application installed on a user’s computer to enable secure USB communication between a Trezor device and browser Trezor Bridge is essential software that enables communication between your Trezor device and your web browser for secure cryptocurrency management.Trezor Bridge enables seamless communication between your Trezor hardware wallet and web apps. Install or update Trezor Bridge to securely manage your cryptocurrency What is Trezor Bridge? Trezor Bridge is a communication tool that allows your Trezor hardware wallet to interact with web applications and browser extensions securely.