Installing Trezor Bridge on Mac/Windows


Trezor Bridge is a lightweight background application that allows your Trezor hardware wallet to communicate with your browser. It is essential for using your Trezor device with browser-based interfaces and services. This guide outlines the exact steps for installing Trezor Bridge on both macOS and Windows systems.

What You Need Before Installation

  • A Trezor hardware wallet (Model One or Model T)
  • A computer with macOS or Windows
  • A compatible browser (Chrome, Firefox, Brave, or Edge)
  • A stable internet connection

Installing Trezor Bridge on Windows

Step 1: Download the Installer

  1. Open your browser and navigate to the official page:
     https://trezor.io/start
  2. Select the option to download Trezor Bridge for Windows.
  3. Save the installer file (e.g., trezor-bridge-setup.exe) to your computer.

Step 2: Run the Installer

  1. Locate the downloaded file and double-click to open it.
  2. If you see a Windows SmartScreen warning, click More info and then Run anyway.
  3. Follow the installation steps:
  • Accept the license agreement.
  • Click Install to proceed.

Step 3: Complete and Verify Installation

  • Once installed, Trezor Bridge will run silently in the background.
  • Connect your Trezor device via USB.
  • Open Trezor Suite or a browser-based app like MetaMask.
  • Your Trezor device should now be recognized.

Installing Trezor Bridge on macOS

Step 1: Download the Disk Image

  1. Visit https://trezor.io/start in your web browser.
  2. Choose Trezor Bridge for macOS.
  3. Download the .dmg file to your system.

Step 2: Install the Application

  1. Open the .dmg file to mount the installer.
  2. Drag the Trezor Bridge.app icon into your Applications folder.
  3. Open your Applications folder and launch Trezor Bridge.

If prompted with a macOS warning about unidentified developers, choose Open in the confirmation dialog.

Step 3: Grant Permissions

  • macOS may request permission to access USB devices.
  • Confirm the prompt to allow communication with your Trezor device.

Step 4: Verify the Installation

  • With Trezor Bridge running, plug in your Trezor device.
  • Open Trezor Suite or your browser wallet.
  • The device should now be detected automatically.

Troubleshooting Tips

  • Device not detected:
  • Reconnect the USB cable.
  • Restart your computer.
  • Try another USB port or cable.
  • Ensure no other wallet software (e.g., Ledger Live) is interfering.
  • Browser still cannot detect device:
  • Make sure Bridge is installed correctly.
  • Reinstall Bridge from the official site if needed.
  • Clear your browser cache and refresh the page.

Updating Trezor Bridge

Trezor Bridge does not update automatically. To update:

  1. Go to
  2. Download the latest version for your operating system.
  3. Run the installer. It will overwrite the old version and restart the service.

Uninstalling Trezor Bridge

  • On Windows:
  • Go to Control Panel → Programs → Uninstall a program.
  • Select Trezor Bridge and uninstall.
  • On macOS:
  • Navigate to the Applications folder.
  • Delete Trezor Bridge.app and empty the Trash.

Final Notes

  • Always download Trezor Bridge from the official site to avoid malware or phishing risks.
  • Trezor Bridge is required for browser communication but not necessary if you only use the desktop version of Trezor Suite.
  • If using browser-based wallets like MetaMask with your Trezor, Bridge must be running for the device to be recognized.

By following this guide, you can successfully install Trezor Bridge on your Mac or Windows computer and ensure seamless connectivity between your Trezor hardware wallet and browser-based tools.