Trezor Bridge — Connect Your Trezor Wallet to Browser & Suite

A friendly, colorful guide to installing Trezor Bridge, connecting your hardware wallet to browsers and Trezor Suite, and common troubleshooting tips.

What is Trezor Bridge?

Trezor Bridge is a small background application that enables secure communication between your Trezor hardware wallet and web applications (like browser wallets) or the official Trezor Suite desktop app. Think of it as a tiny, dedicated translator: the browser talks to Bridge, Bridge talks to your Trezor device via USB (or sometimes WebUSB), and the two exchange commands in a secure, isolated way.

Why you need it

Modern browsers restrict direct access to USB devices for security reasons. Trezor Bridge provides a trusted bridge for that communication, avoiding unsafe browser workarounds and giving a consistent user experience across operating systems. It supports Windows, macOS, and many Linux distros.

1
Download
Get the official installer from the Trezor website or the Trezor Suite download page. Always verify you’re on the correct domain before downloading.
2
Install
Run the installer and follow the prompts. On macOS you may need to allow the app in System Preferences → Security & Privacy.
3
Connect
Open your browser or Trezor Suite, plug in your Trezor, and allow the connection when prompted. You’ll typically see a prompt asking you to confirm access on the device itself.
Download Trezor Bridge

Security & Best Practices

Bridge is designed to be minimal and secure. Still, follow these guidelines:

  • Only download Bridge from the official Trezor domain or verified mirrors.
  • Keep your Trezor firmware up-to-date (device prompts will guide you when needed).
  • Never share your recovery seed with any software or person — Bridge never asks for it.
  • Use a strong machine-level password and keep your OS updated to minimize USB attack vectors.

Troubleshooting

Common problems

Device not detected?

Try a different USB cable, preferably the original one. Some charging cables lack data lines. Restart Bridge (or your computer), and ensure no browser extension is blocking device access.

Browser says "no supported bridge"

Confirm Bridge is running. On Windows check the system tray; on macOS check the menu bar. Reinstall Bridge if needed. For advanced users, check firewall rules that may block local loopback connections (Bridge uses localhost).

Trezor Suite shows an error

Update Trezor Suite to the latest version and make sure your device firmware is compatible. If problems persist, export logs and consult official support channels.

FAQ

Is Bridge required for mobile?
Bridge is primarily for desktop browsers and Trezor Suite desktop. Mobile apps and mobile browsers can use other connection methods (like WebUSB or mobile-specific SDKs).
Will Bridge collect my keys?
No. Private keys never leave your Trezor device. Bridge only relays encrypted commands and responses between your machine and the device.
Can I run multiple Trezor devices?
Yes. Bridge supports multiple connected devices; you’ll be prompted to choose which device to use when interacting with apps.