What is Trezor Bridge?
Trezor Bridge is a small, local software application that enables secure communication between a Trezor hardware wallet and web-based interfaces. Many browser-based wallet UIs rely on Bridge to detect your device, request signatures, and display account information without exposing private keys. Unlike cloud services, Bridge runs locally on your computer and simply forwards encrypted messages between the browser and the hardware device.
Installation and updates
Install Trezor Bridge from official, verified sources. After installation, the software runs locally and listens for connections from compatible web pages. Keep Bridge updated — updates often include performance improvements and security patches. If a website or wallet prompts you to install or update Bridge, verify the prompt originates from a trusted interface before proceeding. An updated Bridge ensures compatibility with the latest device firmware and web standards.
Security best practices
Trezor hardware wallets keep private keys offline; Bridge only relays messages. However, you should still practice caution: use Bridge on trusted machines, avoid connecting your wallet on public or unknown computers, and ensure your operating system and browser are patched. When a webpage requests a signature, read the prompt on the device display carefully before approving. The device’s screen shows the exact transaction details you must verify — never approve anything you don’t recognize.
Privacy and local operation
Because Bridge operates locally, it minimizes network exposure. It does not transmit your seed phrase or private keys. The communication channel is limited to enabling the web app to request signatures and view public addresses. Nonetheless, minimize unnecessary browser extensions and avoid connecting to untrusted websites that could try to trick you into signing malicious messages.
Troubleshooting common issues
If your browser does not detect the device, check that Bridge is running, the USB cable is connected properly, and the device is unlocked. Restarting the Bridge service or reconnecting the device will often fix detection issues. If the problem persists, verify that your browser version is supported and that you have the current Bridge release installed. Rebooting the computer can also clear lingering driver issues.
In summary, Trezor Bridge is the secure, local bridge between your hardware wallet and web interfaces. When used with proper installation, updates, and device verification habits, it offers a safe way to use Web3 tools while keeping your private keys offline.