Trezor Bridge is a small helper application that allows your Trezor hardware wallet to communicate securely with web-based wallet software running in your browser. It acts as a translator and a guarded tunnel between the device and your desktop browser so you can manage keys safely without exposing them to the internet.
Note: Bridge is different from the firmware on the device — it simply facilitates safe communication from your computer to the Trezor.
Bridge ensures modern browsers can discover and interact with the Trezor device reliably. Without Bridge, certain browsers block direct device access for security reasons. Bridge provides a consistent cross-platform interface so you won’t be blocked by browser updates or USB permission changes.
Tip: Keep Bridge updated to get the latest compatibility and security fixes.
Trezor Bridge limits communication to your local machine and the connected hardware wallet. It never transmits your private keys to the cloud or any remote server. All signing operations happen inside the Trezor device itself; Bridge merely forwards encrypted commands and responses between the device and wallet software.
Security model: Keep your device firmware and Bridge app updated, and always verify addresses on the hardware screen.
Visit the official website to download the Bridge installer for your operating system. Run the installer and follow on-screen instructions. After installation, your browser should detect Trezor automatically. If not, a quick restart of the browser or computer usually resolves detection issues.
Important: Only download Bridge from the official Trezor domain to avoid counterfeit software.
Official: https://trezor.io
Check the USB cable and port, ensure Bridge is running (there’s a system tray icon on some OS), and confirm the device is unlocked. Disable conflicting apps that may claim USB access and make sure your browser is up-to-date. On Linux, verify udev rules if the device is not visible.
If detection fails repeatedly or the app behaves unpredictably, reinstall Bridge after removing the previous version and rebooting the system.
Most modern browsers support Trezor when Bridge is installed. Some browsers have strict security models that require Bridge or specific extensions. If an in-browser wallet suggests a plugin or helper, prefer the official Bridge for stability and privacy.
If you use multiple browsers, ensure Bridge is allowed to run and that no browser policy blocks localhost connections.
Bridge does not collect telemetry about your private keys or account balances. Its function is purely to connect your computer’s wallet UI with the secure element on the Trezor device. For full privacy, avoid exposing your device in shared or untrusted environments and always confirm sensitive actions directly on the device screen.
Trezor Bridge receives occasional updates for compatibility, security patches, and bug fixes. Enable notifications where supported, or check the official Trezor website occasionally. Installing updates promptly reduces the chance of connection issues and benefits from hardened security improvements.
Bridge updates are released as needed — there is no fixed schedule. Follow official channels for announcements.
Always verify the transaction details on your Trezor display before signing. Use strong, unique passphrases if enabled, and never share your recovery seed. When connecting to new or public networks, be extra cautious about the software you run alongside Bridge.
For downloads, documentation, and troubleshooting guides visit the official website. Community forums and verified support channels can help with advanced issues. When in doubt, consult the Trezor knowledge base to avoid unofficial or risky advice.
Official resource: https://trezor.io/support
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