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Trezor® Bridge: Secure Browser Communication for Legacy Access

What is Trezor® Bridge?
Trezor® Bridge is a lightweight background service that enables secure communication between your Trezor® hardware wallet (primarily Model One) and web browsers when using the legacy interface at wallet.trezor.io. It translates USB signals into a browser-compatible format.

⚠️ Note: Trezor Suite (desktop/web) requires no Bridge – it communicates directly with your device.

When Do You Need Trezor® Bridge?

ScenarioBridge Required?Accessing wallet.trezor.io in Chrome/Firefox✅ YesUsing Trezor Suite (desktop/app)❌ NoSetting up via trezor.io/start❌ No (Suite preferred)Firmware updates via browser✅ Yes

Installation & Setup Guide

  1. Automatic Prompt:
  • Visit wallet.trezor.io or trezor.io/start with a Model One connected.
  • Browser detects missing Bridge → prompts download.
  1. Manual Download:
  1. Install & Run:
  • Launch installer → runs silently in system tray/menu bar.
  • No interface; operates in background.

Trezor Bridge Login Process

  1. Connect Device: Plug Trezor® Model One into USB.
  2. Open Browser: Navigate to wallet.trezor.io.
  3. Enter PIN: Use the browser interface to tap your PIN on the Trezor® device screen.
  4. Access Wallet: View balances or send/receive crypto.
🔐 Security Note: Always verify the URL is wallet.trezor.io – bookmark it!

Trezor® Bridge vs. Trezor Suite: Key Differences

FeatureTrezor Bridge + wallet.trezor.ioTrezor SuiteDevice SupportModel One (limited Model T)All Trezor® devicesFunctionalityBasic transactionsPortfolio, Exchange, TorUpdatesManual Bridge reinstallsAuto-updates in-appSecurityRelies on browser securityDedicated app + Tor

Troubleshooting Bridge Issues

  • "Bridge Not Detected":
  • Restart Bridge service (check system tray).
  • Reinstall Bridge → reboot computer.
  • Browser Conflicts:
  • Disable VPNs/firewalls temporarily.
  • Use Chrome/Firefox; avoid Brave with shields up.
  • Device Not Found:
  • Try different USB port/cable.
  • Close Trezor Suite (causes conflicts).

Trezor® Bridge FAQ

Q1: Is Trezor Bridge safe to use?

A: Yes, if downloaded from trezor.io/bridge. It enables secure communication but depends on your browser’s security. Suite is safer with Tor and phishing protection.

Q2: Do I need Bridge for Trezor Suite?

A: No. Suite communicates directly with your Trezor®. Uninstall Bridge if using Suite exclusively to avoid conflicts.

Q3: Why does wallet.trezor.io prompt for Bridge even after installation?

A: Restart your browser. Ensure the Bridge process is running (e.g., trezord in Activity Monitor). Reinstall if persistent.

Q4: Can I use Bridge with Trezor Model T?

A: Rarely needed. Model T supports WebUSB in Chrome without Bridge. Use Trezor Suite for full features.

Q5: How do I update Trezor Bridge?

A: Download the latest version from trezor.io/bridge. Older versions lack critical security patches.

Q6: Should I delete Bridge after setting up my Trezor®?

A: If you use Trezor Suite exclusively: yes. It reduces background processes. Keep it only for browser-based firmware updates.