Trezor Bridge — Secure Connection for Your Trezor

Introduction — what was Trezor Bridge?

Trezor Bridge was a small background application that allowed desktop browsers and software to communicate with Trezor hardware wallets over USB. It acted as a local relay, exposing a secure channel between the browser (or Trezor Suite) and the attached device so the web-based or desktop app could request user confirmation and signatures without directly accessing low-level USB.

Why Bridge existed

Historically web browsers restricted direct USB or HID access for security or stability reasons, so a lightweight intermediary like Bridge made integration simple and consistent across platforms and browsers.

Current status — deprecation and the recommended path

Important: Trezor has **deprecated the standalone Trezor Bridge** and now recommends using the official Trezor Suite (desktop or web) and newer integration paths. If you still have Bridge installed, follow Trezor's guidance for removal because legacy Bridge installs may interfere with future updates and features. :contentReference[oaicite:0]{index=0}

What to do if you currently use Bridge

1. Uninstall the standalone Bridge if you no longer need it.
2. Install or migrate to the latest Trezor Suite for desktop or the official web experience (Trezor Suite handles device connectivity natively). :contentReference[oaicite:1]{index=1}
3. If you’re a developer, migrate integrations to supported tools like Trezor Connect or the maintained daemon implementations on GitHub. :contentReference[oaicite:2]{index=2}

Security implications and best practices

Why removal is recommended

Removing deprecated background tools reduces attack surface and avoids conflicts with modern clients. The recommended Trezor Suite and official connect libraries use maintained, audited code paths. For peace of mind, always download official releases from Trezor’s website or verified GitHub organization pages. :contentReference[oaicite:3]{index=3}

Device and OS hygiene — quick checklist

• Only install software from trezor.io or GitHub repos under the official trezor organization.
• Keep your Trezor firmware and Trezor Suite updated; updates include security fixes and compatibility improvements. :contentReference[oaicite:4]{index=4}
• Prefer Trezor Suite (desktop) for regular management rather than third-party tools unless you explicitly trust and have audited them.
• Use your recovery seed offline and never share it; use a passphrase if you need an extra layer.

Browser & OS compatibility notes

Modern Trezor connectivity favors Chromium-based browsers for full functionality because of WebUSB and other APIs. Trezor's compatibility guidance explains which browsers provide the best experience; in practice, Trezor Suite (desktop) offers the most consistent cross-platform support. :contentReference[oaicite:5]{index=5}

Developers: migrating integrations

If your product used Bridge, migrate to the official integration stack:

• Trezor Connect — a JS API and ecosystem for web integrations (hosted popup + secure endpoints). :contentReference[oaicite:6]{index=6}
• trezord / trezord-go — the communication daemon implementations (GitHub) used by some desktop stacks. :contentReference[oaicite:7]{index=7}
• Refer to the Trezor firmware and developer docs for reproducible build instructions and libraries if you need deeper device-level integration. :contentReference[oaicite:8]{index=8}

Quick dev tips

Use the official @trezor/connect and the Trezor Connect explorer while testing. Avoid shipping custom, unsigned daemon binaries to end users — always rely on official releases or clearly documented build steps from the trezor organization.

How to migrate (concise step-by-step)

1. Uninstall standalone Bridge (if installed).
2. Install the latest Trezor Suite desktop app or use the official web Suite. :contentReference[oaicite:9]{index=9}
3. Update your device firmware through Trezor Suite when prompted. :contentReference[oaicite:10]{index=10}
4. For integrations, switch library calls from Bridge-specific endpoints to Trezor Connect or supported daemon APIs; test with the connect-explorer. :contentReference[oaicite:11]{index=11}
5. Audit and sign releases from official trezor GitHub repositories when possible. :contentReference[oaicite:12]{index=12}

Final note

Trezor continues to support secure desktop and web workflows, but the recommended stack has changed over time. Follow official release notes and guides to keep your environment safe and compatible.

Official links (10)