What is trezor bridge?
trezor bridge is the official connector application that enables communication between your Trezor hardware wallet and your browser or desktop wallet interface. It runs on your computer, creates a secure local channel, and allows web apps such as the Trezor Suite web interface to detect and talk to your device without exposing your private keys.
When you visit the official Trezor web interfaces, you may be prompted to install or update trezor bridge. This is normal — Bridge ensures compatibility and keeps the device handshake secure, encrypted, and user-confirmed on the physical device screen.
Why you need Trezor Bridge
Modern browsers restrict direct USB access to hardware devices for security. trezor bridge acts as a small, trusted helper on your system that bridges the browser to your Trezor device with explicit user consent. The result: secure signing, firmware updates, account management, and transaction approval — all while your seed and private keys remain isolated on the hardware wallet.
How to install and use trezor bridge
Installing trezor bridge is straightforward. Visit the official page, choose the right installer for your operating system, run the installer, and allow the small helper app to run in the background. Once installed, refresh the Trezor web interface or open the Trezor Suite (desktop or web) and connect your device. The interface will detect your Trezor and guide you through any steps including firmware checks and PIN verification.
Troubleshooting & tips
If the web interface does not detect your device, ensure trezor bridge is installed and running, try another USB cable or port, and confirm the device is unlocked. Sometimes browsers cache old states — close and reopen the browser or try a supported browser. For device firmware and compatibility advice, visit trezor.io/start which contains official setup and troubleshooting steps.
Common issues
Device not recognized: Reinstall Bridge, use a different cable/port, check OS permissions.
Browser prompts blocked: Make sure pop-ups and site permissions for local connections are allowed for the Trezor host page.
If problems persist, consult official support at trezor.io.
Detailed overview — how trezor bridge protects your workflow
The modern web prevents arbitrary USB access to protect users, which is good — but it also complicates legitimate hardware wallet usage. That’s where trezor bridge helps: it creates a secure, local connection between your browser and your Trezor device without exposing cryptographic secrets. The bridge uses local host communication and does not forward private keys or recovery data to remote servers. Every sensitive action — creating wallets, signing transactions, or updating firmware — requires confirmation on the physical device screen. In short, the bridge improves usability while preserving the highest security guarantees Trezor hardware provides.