What is Trezor Bridge?

Trezor Bridge is a small piece of software developed by SatoshiLabs to enable communication between your Trezor hardware wallet and your computer’s web browser. When you connect your Trezor device (such as Trezor Model T or Trezor One) to your computer, Trezor Bridge acts as the secure channel that allows the Trezor Suite app or a compatible wallet interface to talk directly to the device.

Previously, Trezor relied on a Chrome extension called Trezor Chrome Extension, but as browsers evolved, especially with the deprecation of NPAPI plugins and some USB access restrictions, SatoshiLabs replaced the extension with Trezor Bridge. Unlike browser extensions, Bridge works on the system level and is supported on Windows, macOS, and Linux.

Why is Trezor Bridge Important?

Without Trezor Bridge, your browser or the Trezor Suite app might not be able to detect your Trezor device properly, making it impossible to sign transactions, manage crypto assets, or set up your wallet securely.

Bridge provides:

• Direct communication: No need for extra browser plugins.
• Improved security: It uses secure local connections.
• Better compatibility: Works with modern browsers like Chrome, Firefox, Edge, and Safari.

How to Install and Use Trezor Bridge — Step-by-Step Guide

Step 1: Prepare Your Trezor Device

Before installing Bridge, make sure your Trezor hardware wallet is ready:

1. Unbox your device if it’s new.
2. Connect it to your computer using the original USB cable.
3. Visit trezor.io/start to initialize your wallet and update the firmware if needed.

Step 2: Download Trezor Bridge

1. Open your browser and go to https://trezor.io/bridge/.
2. The site will automatically detect your operating system.
3. Click “Download Trezor Bridge” for your OS (Windows, macOS, or Linux).

Step 3: Install Trezor Bridge

1. Once the download is complete, open the installer file.
   • Windows: Run the .exe file.
   • macOS: Open the .dmg and drag the app to your Applications folder.
   • Linux: Use the .deb or .rpm file for your distro, or follow the terminal commands provided.
2. Follow the on-screen instructions to complete the installation.
3. After installation, restart your browser to ensure it detects the Bridge.

Step 4: Verify Installation

1. Reconnect your Trezor device to your computer.
2. Open Trezor Suite (either the desktop app or the web version at suite.trezor.io/web).
3. Trezor Suite should now detect your device automatically.
4. If you see prompts asking for permissions, click Allow to grant your browser access.

Step 5: Use Your Trezor Securely

1. With Bridge running in the background, you can now send and receive crypto, manage accounts, or sign transactions securely.
2. Trezor Bridge will start automatically each time you boot up your computer — no need to run it manually.
3. Keep your Trezor device’s firmware and Trezor Suite up to date for maximum security.

Final Tips for Using Trezor Bridge

✅ Always download Bridge from the official site to avoid malware.

✅ Update regularly — Trezor may release Bridge updates for security improvements.

✅ Don’t disconnect your Trezor while transactions are processing.

✅ Keep your recovery seed safe — Bridge does not store any private keys. Your keys never leave the device.

Trezor Bridge is a simple but crucial tool that ensures your hardware wallet works seamlessly with your computer. With it installed, you can use your Trezor to its full potential while keeping your crypto assets secure.