What to Do If Trezor Bridge Won’t Launch


Trezor Bridge is critical for enabling communication between your Trezor hardware wallet and your browser. If it won’t launch properly, you may be unable to access your wallet through the Trezor web interface or use integrations like MetaMask. This guide outlines the most effective steps to troubleshoot and fix the issue.

1. Restart Your Computer

Before diving into deeper troubleshooting:

  • Fully shut down your computer (don’t just restart).
  • Reconnect your Trezor device after startup.
  • Open your browser or Trezor Suite to check if Bridge activates.

Sometimes background processes can stall, and a clean restart helps.

2. Check if Trezor Bridge Is Already Running

Trezor Bridge runs silently in the background, so you won’t see a visible window.

  • On Windows:
  • Open Task Manager and look for trezord.exe or Trezor Bridge under background processes.
  • On macOS:
  • Open Activity Monitor and search for Trezor Bridge.

If it's already running, the issue might be with browser communication—not the Bridge itself.

3. Uninstall and Reinstall Trezor Bridge

A corrupted or outdated installation may prevent it from launching.

For Windows:

  • Open Control Panel → Programs → Uninstall a program
  • Find Trezor Bridge and uninstall it

For macOS:

  • Go to the Applications folder
  • Drag Trezor Bridge to the trash and empty it

Then, manually download and reinstall the latest version from the official Trezor website using a trusted browser.

4. Use Trezor Suite Desktop Instead

If Trezor Bridge continues to fail and you don’t specifically need browser access:

  • Use Trezor Suite Desktop, which does not depend on Trezor Bridge
  • Trezor Suite offers direct USB support and is generally more stable than browser-based tools

This is the recommended method for most users in 2025.

5. Check USB and System Permissions

  • Use the original or high-quality USB cable (some cheap ones are power-only)
  • Try a different USB port
  • Avoid USB hubs or extensions
  • Make sure your system allows background apps or services to run

On macOS, you may need to approve the Bridge under System Settings > Security & Privacy.

6. Disable Conflicting Software

  • Close any other wallet apps like Ledger Live, which may block USB access
  • Temporarily disable VPNs, firewalls, or antivirus software that could prevent Bridge from running or listening on local ports

7. Launch Manually (Advanced)

On some systems, especially Linux, Bridge may not auto-launch:

  • Open a terminal and run the Bridge manually using command-line tools
  • Navigate to the Bridge installation folder and run the executable file

Only attempt this if you're comfortable using terminal commands.

8. Try Another Browser

If you're using a browser-based interface and Trezor Bridge won't launch:

  • Switch to Chrome, Firefox, or Brave
  • Make sure browser extensions (like ad blockers or privacy filters) aren’t blocking USB access
  • Try using incognito mode to rule out extension conflicts

Final Tip: Check for System Updates

  • Make sure your operating system is up to date
  • Update your browser to the latest version
  • Ensure Trezor Bridge is the latest available release

Outdated environments are more likely to cause compatibility issues.

When to Contact Trezor Support

If you’ve tried all the above and Trezor Bridge still won’t launch:

  • Document your OS, Bridge version, and browser
  • Describe any error messages
  • Contact Trezor Support for deeper diagnostics

Summary

Trezor Bridge not launching is often caused by outdated software, USB issues, or system conflicts. A clean reinstall, device restart, or a switch to Trezor Suite desktop usually resolves the problem. If all else fails, the desktop suite is the most stable and secure alternative for managing your crypto safely.