🔐 What is Trezor Bridge®?
Trezor Bridge® is a background software utility developed by SatoshiLabs that acts as the communication layer
between your Trezor hardware wallet and your browser. It is required to enable secure interaction between your device and applications
like Trezor Suite or third-party platforms that support Trezor integration.
Without Bridge, many browsers may fail to detect your hardware wallet, especially on systems where WebUSB isn’t supported or allowed.
🧰 What You Need to Begin
- Your Trezor device (Trezor One or Model T)
- A USB data cable
- A computer with Windows, macOS, or Linux
- Internet access (for setup and downloading Bridge)
- A safe and private workspace
⚠️
Security Tip: Never download Bridge from unofficial sources. Only use the official website:
trezor.io/bridge
🚀 Step-by-Step: Installing Trezor Bridge
- Visit trezor.io/bridge
- Choose your operating system: Windows, macOS, or Linux
- Download and launch the installer
- Follow the prompts to install Trezor Bridge
- Restart your browser after installation
- Connect your Trezor device to your PC using the USB cable
- Visit Trezor Suite Web to confirm successful connection
💡 What Happens After Installation?
Once Trezor Bridge is installed and your Trezor is plugged in:
- Bridge begins running in the background automatically
- It listens for connections from apps like Trezor Suite via
localhost
- Your browser or wallet can then detect and interact with the Trezor securely
- No sensitive information (like your recovery seed or private keys) ever leaves your device
🛡️ Why Bridge is Secure
Trezor Bridge uses the following security principles:
- Local-only communication: It never connects to external servers
- End-to-end encryption: All device data stays on your machine
- Digital signatures: You must confirm all actions on your physical device
- No hidden scripts: Transparent open-source design
🧩 Compatibility
Trezor Bridge supports all modern operating systems and browsers. Here’s a quick compatibility list:
- Windows 10+ (64-bit)
- macOS 10.15+ (Intel and Apple Silicon)
- Linux: Ubuntu, Debian, Fedora, Arch (manual setup may apply)
- Browsers: Chrome, Firefox, Brave (Safari via Suite App)
🧪 Verifying Installation
To make sure Bridge is working:
- Open Trezor Suite Web
- Check that your device appears in the top menu
- If it doesn’t, restart your browser and confirm Bridge is running
- You may also open
http://127.0.0.1:21325/status/ to verify its active state
🧯 Troubleshooting Tips
🔌 Device Not Detected?
- Check USB cable — use data + power cable
- Try a different port
- Ensure Bridge is running in the background
- Temporarily disable browser extensions like ad blockers or firewalls
🔁 Bridge Keeps Asking to Reinstall?
- Clear browser cache
- Manually remove old installations
- Ensure no other wallet extensions are interfering
🌐 Cannot Reach Trezor Suite Web?
- Check firewall settings
- Disable VPN or proxies
- Use latest browser version
📦 Updating Trezor Bridge
Regular updates ensure your Bridge stays compatible and secure. To update:
- Visit trezor.io/bridge
- Download the latest installer
- Run the update and follow the prompts
🔐 What You Should Never Do
- Never enter your recovery seed online
- Never install Trezor apps from unofficial sources
- Never approve transactions you don't recognize
- Never allow others physical access to your device without supervision
🚫 Reminder: Trezor Support will NEVER