Trezor Bridge is an essential piece of software that allows your Trezor® hardware wallet to communicate securely with your computer’s web browser. It acts as a bridge between your hardware wallet and browser-based interfaces, such as the Trezor web wallet or certain third-party decentralized applications (dApps).

Without Trezor Bridge, your browser may not recognize your Trezor device. Installing it ensures smooth, secure interaction between your wallet and supported web interfaces while keeping your private keys offline.

What Is Trezor Bridge?

Trezor Bridge is a lightweight background service developed by SatoshiLabs. Its main purpose is to provide encrypted communication between:

• Your Trezor hardware wallet
• Your computer or browser
• Web-based applications supporting Trezor

Unlike older browser extensions, Trezor Bridge works at the system level, providing more stable, secure, and seamless connections. It does not store private keys or sensitive information; it merely facilitates communication between your device and compatible software.

Why Is Trezor Bridge Important?

Hardware wallets like Trezor keep your private keys offline for maximum security. To interact with online interfaces — such as sending crypto, managing accounts, or using dApps — your wallet needs a secure communication channel.

Benefits of using Trezor Bridge include:

• 🔒 Encrypted communication with your Trezor device
• 🌐 Browser compatibility without relying on legacy extensions
• ⚙️ Stable device detection across Windows, macOS, and Linux
• 🛡️ Protection from malicious browser interference

Trezor Bridge ensures that all critical operations, like transaction approvals, happen on the device itself, not on your computer.

When Do You Need Trezor Bridge?

You typically need Trezor Bridge when:

• Using the Trezor web wallet instead of Trezor Suite desktop
• Connecting your device to supported third-party wallets or dApps
• Your browser fails to detect your Trezor hardware wallet

If you are using Trezor Suite desktop, Bridge is usually not required because the desktop app handles direct device communication.

How to Install Trezor Bridge

Installing Trezor Bridge is quick and straightforward:

1. Visit the official Trezor website at Trezor.io/Start.
2. Navigate to the Trezor Bridge download section.
3. Select your operating system: Windows, macOS, or Linux.
4. Download the installer and run it.
5. Follow on-screen instructions to complete installation.

Once installed, Trezor Bridge runs automatically in the background whenever your system starts.

How Trezor Bridge Works

When you connect your Trezor device:

1. Trezor Bridge detects the hardware wallet.
2. It establishes a secure communication channel between the browser and your device.
3. The browser sends transaction requests or account data through Bridge.
4. You approve transactions directly on your Trezor device.

At no point does Trezor Bridge access your recovery seed, PIN, or private keys — all sensitive operations remain offline.

Security and Privacy

Trezor Bridge is designed with security in mind:

• It does not store wallet data
• It does not access private keys
• It does not track browsing activity

All sensitive actions, such as confirming a transaction, require physical approval on your Trezor device. Always download Trezor Bridge from the official source to prevent compromised versions.

Troubleshooting Trezor Bridge

If your device is not recognized:

• Restart your browser or computer
• Try a different USB cable or port
• Reinstall Trezor Bridge
• Ensure your browser is up to date
• Disable firewall or antivirus temporarily if it blocks the connection

For persistent issues, the Trezor Support Center provides detailed troubleshooting guides.