Trezor Bridge®: Secure Browser Integration for Your Hardware Wallet

Trezor Bridge® is a lightweight background service that enables seamless communication between your Trezor® hardware wallet and web browsers. While Trezor Suite® is now the recommended interface for daily management, Bridge remains essential for interacting with third-party web wallets like MetaMask, MyEtherWallet, or decentralized applications (dApps).

When Do You Need Trezor Bridge®?

Use CaseSolutionAccessing web-based wallets (e.g., MyEtherWallet)✅ RequiredSigning transactions in browser dApps✅ RequiredDaily portfolio management & staking❌ Use Trezor Suite® instead

How Trezor Bridge® Works: A Secure Handshake

Installation:

Automatic: Bundled with Trezor Suite® download.
Manual: Available at trezor.io/start under "Legacy Tools".

Connection:

Install Bridge → Connect Trezor® via USB → Open supported web wallet.

Trezor Bridge Login:

Web wallet detects device → Requests action (e.g., "Sign transaction") → Verify details on Trezor® screen → Physically confirm.

🔒 Critical Security Note: Bridge never accesses private keys. It merely passes encrypted messages between the browser and your device.

Key Differences: Trezor Suite® vs. Trezor Bridge®

FeatureTrezor Suite®Trezor Bridge®PurposeFull asset management & securityBrowser/dApp connectivityData StorageLocal encrypted storageNo data storagePrivacyBuilt-in Tor, CoinJoinDepends on browserUpdatesRegular feature additionsMaintenance-only

Step-by-Step: Using Trezor Bridge®

Install:

Download from trezor.io/start (if not auto-installed with Suite®).

Connect Hardware:

Plug Trezor® into USB port.

Access Web Wallet:

Navigate to supported site (e.g., app.metamask.io).

Login & Confirm:

Select "Hardware Wallet" → "Trezor" → Verify actions on device screen.

⚠️ Never enter your recovery seed on any website! Physical device confirmation is mandatory.

Troubleshooting Trezor Bridge®

"Bridge Not Detected" Error: Reinstall Bridge manually via trezor.io/start.
Browser Compatibility: Works on Chrome, Firefox, Edge.
Connection Issues: Try different USB cable/port or restart Bridge (system tray icon).

FAQ: Trezor Bridge® Essentials

Q1: Is Trezor Bridge® safe to use?
A: Yes, if downloaded from official sources. It acts as a communication tunnel only. Your keys stay offline, and all actions require physical device confirmation.

Q2: Do I need Bridge if I only use Trezor Suite®?
A: No. Suite® communicates directly with your device. Bridge is only required for browser-based wallets/dApps.

Q3: Why does MyEtherWallet ask for Trezor Bridge®?
A: MEW hasn’t fully migrated to Trezor Connect (web-based API). Until it does, Bridge enables secure Trezor® integration.

Q4: Can I use Bridge with Trezor Suite App (mobile)?
A: No. Bridge is for desktop browsers. Mobile uses direct Bluetooth/USB-C via Trezor Suite®.

Q5: How do I update Trezor Bridge®?
A: It updates automatically. Manual updates are included with Trezor Suite® downloads.

Q6: Should I delete Bridge if I don’t use web wallets?
A: Yes. Reduce background processes by uninstalling it (Windows: Control Panel; macOS: drag to Trash). Use Suite® exclusively for optimal security.

Why Trust Trezor Bridge®?

Open-Source Code: Publicly auditable on GitHub.
Zero Key Exposure: Private keys remain in your Trezor®.
Sessionless Design: Every action requires fresh device confirmation.

"Trezor Bridge® ensures even web-based interactions adhere to our uncompromising security standards."
– SatoshiLabs Security Team

Upgrade Your Workflow

While Bridge enables legacy web access, Trezor Suite® offers a superior experience:

Local data encryption
Integrated staking & exchanges
Privacy features (Tor, CoinJoin)
Mobile sync

For modern, secure management:
👉 Download Trezor Suite®
For web compatibility:
👉 Get Trezor Bridge® via trezor.io/start

Trezor®: Your keys, your coins, your control.