Do I need Trezor Bridge?

If you use Trezor Suite (desktop or web) or certain browser integrations, installing Bridge ensures reliable USB connectivity. Desktop Suite includes necessary drivers on most platforms, but Bridge can help with web-based flows.

Where can I download Trezor Bridge?

Always download Bridge from the official Trezor start page at trezor.io/start to avoid fake installers and ensure you get the correct version for your OS.

Trezor Bridge — Install, Use & Troubleshoot (2025 Guide)

Connectivity Guide

Trezor Bridge — What It Is, How to Install, and Troubleshooting

Q: What is Trezor Bridge?

Trezor Bridge is a small background application that allows your computer and supported browsers to communicate securely with a Trezor hardware wallet. It replaces older direct-browser USB methods and is required for some setups.

A short, practical guide to installing Trezor Bridge, understanding how it works with Trezor Suite and browsers, and fixing common connection issues.

What is Trezor Bridge?

Trezor Bridge is a lightweight local application that runs in the background on your computer and mediates secure USB communication between your Trezor hardware wallet and applications such as Trezor Suite or supported browser integrations. It provides a stable, cross-platform way to talk to the device without exposing keys or sensitive data to the web.

Why you might need Bridge

Browser compatibility: Some browsers restrict direct USB access — Bridge bridges that gap.
Stable connections: Prevents intermittent disconnects with web-based flows.
Platform support: Helps on older OS/browser combinations where native WebUSB support is limited.

How to Download & Install

Go to the official start page: trezor.io/start.
Select your OS (Windows, macOS, or Linux) and download the Bridge installer if prompted. Desktop Trezor Suite may include what you need for most setups.
Run the installer and follow on-screen instructions. On macOS you may need to allow the app in Security & Privacy settings if your OS blocks it.
After installation, Bridge runs in the background. Connect your Trezor and open Trezor Suite (or the supported web app) to proceed.

Note: Always download Bridge from the official Trezor site. Avoid third-party mirrors to prevent tampered installers.

Common Issues & Fixes

Problem	Fix
Device not recognized	Restart Bridge, reconnect USB, try a different cable/port. Ensure device screen shows the Trezor logo.
Browser can't connect	Install Bridge and restart browser. For Chrome/Edge, enable WebUSB or use the desktop Suite instead.
macOS permission errors	Open System Preferences → Security & Privacy and allow the blocked installer. Reboot if needed.
Intermittent disconnects	Use a short, high-quality USB cable and avoid USB hubs. Update Bridge and Trezor firmware.

If problems persist, consult the official Trezor help center and community forums—never share your recovery seed when seeking support.

Security Tips

Download Bridge only from trezor.io/start. Verify site URL and certificate.
Keep Bridge and Trezor Suite updated to receive security fixes.
Never enter or transmit your recovery seed — Bridge or Suite will never ask for it.
Confirm every transaction on your Trezor device screen before approving.

Quick FAQ

Is Bridge required to use Trezor?

Not always. Desktop Trezor Suite often includes the necessary drivers. Bridge is recommended for certain web flows and legacy setups.

Will Bridge see my private keys?

No. Bridge only passes messages between applications and the device. Private keys remain inside the Trezor hardware at all times.