Trezor Bridge® — Connect Your Trezor to Web Browsers
Overview • Security • Installation • Troubleshooting • Official resources
Introduction
Trezor Bridge is a background service that historically enabled secure communication between a Trezor hardware wallet and web applications (browsers). It was designed to sit on the local machine and facilitate USB or WebUSB connections with web-based wallets and services while keeping your private keys safe inside the device.
Short summary
Use Trezor Bridge when web apps require a stable local connector; however, Trezor increasingly encourages users to manage devices via Trezor Suite and official integrations. If you rely on the standalone Bridge, check Trezor’s official guidance for compatibility and deprecation notes.
Why Bridge exists (purpose)
Trusted local connector
Bridge acts as a small service that offers a secure API for browsers to talk to the physical device without exposing the seed or private keys. It simplifies cross-browser compatibility and supports web wallets that use the Trezor Connect/Bridge model.
Security model
Device-first security
All signing and sensitive operations happen on-device. The Bridge only forwards messages and does not hold seeds or keys. Users must still verify transaction details on the hardware device screen before confirming.
Installation & best practices
Before you install
Always download installers from official sources. Verify signatures when provided and keep your OS and browser up to date. Prefer Trezor Suite for a managed experience where possible.
Quick steps (Windows / macOS / Linux)
Download the official installer from Trezor or GitHub releases.
Verify the file signature (optional but recommended for security).
Run installer and allow the Bridge to run as a background service.
Connect your Trezor device via USB and open the web wallet or Trezor Suite.
Confirm actions on the Trezor device screen before signing.
Troubleshooting hints
Restart the browser after install.
Disable other wallet extensions that may conflict.
Uninstall old standalone Bridge if instructed by official guidance.
Use official support pages if something is unclear.
Compatibility & migration notes
Current recommendation
Trezor documentation indicates that the standalone Bridge has been deprecated in favor of flows integrated in Trezor Suite and modern connect layers — please follow the official deprecation guide before continuing with a standalone Bridge deployment.
Developers
Developers integrating Trezor functionality should consult the official GitHub monorepos and Connect tools to ensure compatibility with the latest Bridge/Connect versions and NodeBridge changes.
Risks & security checklist
Checklist
Verify downloads Use official sources only Confirm on-device Keep firmware updated Uninstall deprecated components
Important:
Never paste your recovery seed into software or into a browser. The Bridge is a facilitator — your seed must remain offline and physically in your control.
Prepared for presentation — contains official links and developer resources below.