Trezor Bridge — Comprehensive Guide

Practical installation, usage, security and troubleshooting guidance for Trezor Bridge.
Official companion

What is Trezor Bridge?

Trezor Bridge is a lightweight local service that enables modern browsers and desktop apps to communicate securely with Trezor hardware wallets. This guide helps you install, configure, and troubleshoot Bridge while following security best practices.

Last updated: October 15, 2025
Author: Trezor Guide Team

Quick start

Follow these short steps to get Bridge running on Windows, macOS, or Linux.

  1. Download the latest Trezor Bridge from the official Trezor website.
  2. Run the installer and follow OS-specific prompts.
  3. Open your browser and visit the Trezor web app — it should detect your device automatically.
# Example: check running process (macOS / Linux)
ps aux | grep -i trezord

# Example: open Trezor web app
# Visit: https://wallet.trezor.io or https://suite.trezor.io

Installation & compatibility

Supported platforms: Windows 10/11, macOS (Intel & Apple Silicon), major Linux distributions. Use the official installer to avoid tampered builds.

Windows

  • Run the .exe installer as Administrator.
  • Allow the driver prompt if asked (Windows may require kernel-mode drivers for older versions).

macOS

  • Open the .dmg and drag the Bridge app to Applications.
  • On first run, macOS may require confirmation in System Settings > Security & Privacy.

Linux

  • Install via package (.deb/.rpm) or use the provided tarball.
  • Ensure you have udev rules in place (for Debian/Ubuntu: copy the provided rules to /etc/udev/rules.d/ and then reload udev).

Usage & workflows

Once Bridge is running, your browser-based wallet or Trezor Suite will communicate with the device through a local endpoint. Typical workflows include sending/receiving crypto, managing passphrases, and firmware updates.

Browser integration

Modern browsers may require permission prompts. If a page asks for access to your Trezor, ensure the domain is legitimate (check the certificate and URL).

Firmware updates

Always update firmware via official Trezor channels and verify release notes. Do not follow untrusted links claiming to offer firmware fixes.

Troubleshooting — common problems

Tip: Always check the official Trezor status pages and support center before trying advanced fixes.

Bridge not detected

  1. Confirm Bridge is running (look for a background process named trezord / trezor-bridge).
  2. Restart your browser and the Bridge service.
  3. Try a different USB cable or port (some cables are power-only).

Device stuck in bootloader or blank screen

Follow official recovery instructions for your Trezor model. Do not enter your seed into unknown web pages.

Security best practices

  • Download Bridge only from the official Trezor website or verified mirrors.
  • Keep firmware and Bridge up to date.
  • Use a hardware wallet PIN and an optional passphrase.
  • Never share your recovery seed. Trezor never asks for the seed.

If you suspect compromise, move funds to a new wallet after securing a new hardware device and ensuring the recovery seed was kept offline.

Frequently asked questions

Q: Is Trezor Bridge required?
A: For many browser-based interactions, yes — Bridge enables secure local communication. Trezor Suite uses its own connector but Bridge is often used by web apps.
Q: Where do I download Bridge?
A: Always use the official Trezor site or the Trezor GitHub releases page to download installers.
Q: Will Bridge share my private keys?
A: No. Bridge only forwards requests between the app and the device. Private keys never leave the hardware wallet.
© Trezor Guide Team — Created October 15, 2025