Trezor Bridge – Official Connection Tool

Your secure link between your Trezor hardware wallet and web/browser-based crypto apps

Download Trezor Bridge

What is Trezor Bridge?

Trezor Bridge is the official software middleware from Trezor (SatoshiLabs) that enables secure, stable, and encrypted communication between your Trezor hardware wallet and your web browser or compatible applications. It replaces older browser extensions/plugins and works at the OS level to simplify connection and improve security. :contentReference[oaicite:0]{index=0}

Whenever you connect your Trezor device (such as Model One, Model T, or newer Safe devices) to your computer via USB, Bridge ensures your browser or web apps like Trezor Suite Web, MetaMask, Electrum, or other Web3‑interfaces recognize it. All sensitive operations (seed, private keys, PIN entry) remain on the hardware device. :contentReference[oaicite:1]{index=1}

Why Trezor Bridge Matters

• Reliable Device Detection: Many browsers block direct USB access; Bridge ensures your Trezor is detected reliably across operating systems. :contentReference[oaicite:2]{index=2}
• Encrypted Local Communication: Bridge uses a local server or port (localhost) to relay commands in an encrypted and secure manner. :contentReference[oaicite:3]{index=3}
• Cross-Browser & Cross-Platform Support: Works with Chrome, Firefox, Brave, Edge; supports Windows, macOS, and Linux. :contentReference[oaicite:4]{index=4}
• No Private Key Exposure: Private keys and recovery seed never leave your Trezor device; the Bridge only relays commands. :contentReference[oaicite:5]{index=5}
• Seamless Updates & Low Overhead: Bridge updates are delivered transparently through official channels; once installed it runs quietly without interfering with your workflow. :contentReference[oaicite:6]{index=6}

How Trezor Bridge Works: Technical Overview

1. You install Trezor Bridge from the official link (e.g. trezor.io/bridge) or via Trezor Suite prompts. :contentReference[oaicite:7]{index=7}
2. Once installed, Bridge runs in the background on your system, listening for incoming connection requests on a local port (often using localhost). :contentReference[oaicite:8]{index=8}
3. When you plug in your Trezor device via USB, Bridge detects it and keeps the system ready for actions such as interface display, transaction signing, firmware updates. :contentReference[oaicite:9]{index=9}
4. A supported browser or application (like Trezor Suite Web, MetaMask, MyEtherWallet, or Electrum) sends a request to Bridge. :contentReference[oaicite:10]{index=10}
5. Bridge forwards the request to the hardware wallet over USB. The hardware wallet displays relevant details (address, amount, operations) and you confirm physically on the device. :contentReference[oaicite:11]{index=11}
6. The signed response is sent back through Bridge to the application or browser; all sensitive data stays locked on your Trezor. :contentReference[oaicite:12]{index=12}

Supported Browsers & Operating Systems

Trezor Bridge supports a wide range of platforms and browsers to ensure users can access their wallets regardless of environment:

• Operating Systems: Windows 10/11; macOS (latest versions and recent releases); many Linux distros. :contentReference[oaicite:13]{index=13}
• Browsers: Google Chrome, Mozilla Firefox, Brave, Microsoft Edge. Some WebUSB‑capable browsers may work without Bridge in certain configurations. :contentReference[oaicite:14]{index=14}
• Not fully supported: Safari has limitations because of its USB API restrictions. :contentReference[oaicite:15]{index=15}

How to Install & Get Started

Follow these steps to install Trezor Bridge securely and begin using it:

1. Go to the official Trezor start page at trezor.io/start to find the Bridge installer. :contentReference[oaicite:16]{index=16}
2. Select the correct version of Bridge based on your operating system (Windows, macOS, Linux). :contentReference[oaicite:17]{index=17}
3. Download the installer and run it. On Windows, use the installer wizard; on macOS drag to Applications; on Linux use supported package formats. :contentReference[oaicite:18]{index=18}
4. Restart your browser (and optionally your computer) after installation to ensure browser integrations detect the Bridge. :contentReference[oaicite:19]{index=19}
5. Plug in your Trezor wallet and open Trezor Suite Web or a compatible Web3 app. Allow permission when prompted. Confirm actions on the device screen. :contentReference[oaicite:20]{index=20}
6. If prompted, update firmware via Suite or the app. Always verify firmware authenticity. :contentReference[oaicite:21]{index=21}

Common Issues & Troubleshooting

• Device Not Detected: Check USB cable/port; ensure Bridge is running. Reinstall if needed. :contentReference[oaicite:22]{index=22}
• Browser Doesn’t Recognize Device: Restart browser or computer; disable conflicting browser extensions or software that may intercept USB communication. :contentReference[oaicite:23]{index=23}
• Outdated Bridge Version: Download the latest version from trezor.io/bridge. :contentReference[oaicite:24]{index=24}
• Security Software Interference: Firewalls, antivirus, or strict OS policies may block local ports. Adjust settings to allow Bridge. :contentReference[oaicite:25]{index=25}

Security & Best Practices

Security is central to the design of Trezor Bridge. Here are best practices to ensure your crypto remains safe:

• Only download Bridge from official Trezor domains like trezor.io. Phishing sites may mimic its UI. :contentReference[oaicite:26]{index=26}
• Verify digital signatures if available; check version numbers. :contentReference[oaicite:27]{index=27}
• Always confirm transaction details (recipient, amount, fees) on the Trezor hardware device before approving. Don’t trust on‑screen browser previews alone.
• Regularly update your Trezor firmware as well as the Bridge to benefit from patches and improvements. :contentReference[oaicite:28]{index=28}
• Keep your computer secure, free from malware, and avoid using public or untrusted machines for sensitive operations.

Alternatives & When Bridge Might Not Be Needed

If you prefer not to install Bridge, or are using environments where it's already built-in, it may be optional in some circumstances:

• Using the Trezor Suite Desktop App which often has native support for USB communication and may not require a separate Bridge. :contentReference[oaicite:29]{index=29}
• If your browser fully supports WebUSB / WebHID and your OS and drivers are up to date. Some modern browsers include direct device access. :contentReference[oaicite:30]{index=30}
• If you only use mobile or native wallet apps where the Bridge is replaced by mobile protocols. Currently less common. :contentReference[oaicite:31]{index=31}