Trezõr brïdge® — Connect Your Web3 World Securely™

Trezõr brïdge® is the secure desktop connector that bridges your Trezor hardware wallet with web browsers, decentralized apps (dApps), and wallet interfaces — keeping private keys offline while enabling seamless interaction with the Web3 ecosystem. This guide covers downloads, installation, usage, security best practices, advanced integrations, and troubleshooting.

Download Trezõr brïdge®

What is Trezõr brïdge®?

Trezõr brïdge® is a lightweight, secure application that runs on your desktop to facilitate communication between your Trezor hardware wallet and web-based wallet interfaces or dApps. It exposes a local API that browser extensions and websites can use to request transaction signing, address verification, and account discovery — but every sensitive action requires explicit confirmation on your Trezor device.

Security note: Trezor Bridge® never exposes private keys to the host computer or browser. All signing takes place on the hardware device.

Download & Supported Platforms

Trezõr brïdge® is available for Windows, macOS, and Linux. Always download the Bridge installer from the official Trezor site or its verified repositories.

  • Windows: MSI or EXE installer for Windows 10 and later.
  • macOS: Intel & Apple Silicon builds (DMG or PKG).
  • Linux: AppImage and distribution packages (.deb, .rpm) for major distributions.

Verify checksums or digital signatures when available to ensure the installer hasn't been tampered with.

Installation & First‑Time Setup

  1. Download the correct installer for your OS from the official source.
  2. Run the installer and follow on‑screen steps. You may need administrator privileges to complete installation.
  3. Start Trezõr brïdge® — the app runs in the background and usually places an icon in your system tray/menu bar.
  4. Connect your Trezor device via USB. When a dApp or browser extension requests access, Bridge will facilitate the communication and your Trezor will prompt you to confirm operations on‑device.
If the Bridge installer is blocked, check OS security settings (macOS Gatekeeper, Windows SmartScreen) and confirm you downloaded from the official domain.

How Trezõr brïdge® Works

Trezõr brïdge® acts as a local middleware between web pages (or browser extensions) and your Trezor device. Typical flow:

  1. A dApp or wallet interface requests account addresses or a transaction to be signed.
  2. Trezõr brïdge® receives the request and forwards it to the connected Trezor device via USB.
  3. The Trezor device displays the operation details (address, amount, contract data) on its screen.
  4. You physically confirm the action on the Trezor device. Only after confirmation is the operation signed and returned to the dApp through Bridge.

This ensures that untrusted software on your computer cannot sign transactions without your explicit approval.

Using Trezõr brïdge® with Wallets & dApps

Trezor Bridge is compatible with a variety of web wallets and dApps. Popular interfaces include wallets that support WebUSB, WebHID, or the Trezor Connect protocol.

Common steps to connect

  1. Install and run Trezõr brïdge® on your desktop.
  2. Open the web wallet or dApp in your browser (Chrome, Edge, Brave recommended).
  3. Select Connect Hardware Wallet or Connect Trezor and follow on‑screen prompts. You may be prompted to allow the website to use Bridge.
  4. Confirm the connection on your device and approve any requests directly on the Trezor screen.
Always review address and transaction details on the Trezor device display — never rely solely on the website's representation.

Security Best Practices

  • Download from official sources: Only download Bridge and firmware updates from the official Trezor domain or verified repositories.
  • Verify installers: Use checksums or signatures where provided to validate installers.
  • Keep Bridge updated: Updates may include security fixes and compatibility improvements.
  • Confirm on-device: Inspect the address, amount and any contract data on your Trezor before approving a signature.
  • Use strong device backups: Keep your recovery seed secure and offline — never enter it into your computer or browser.
  • Limit exposure: Use a dedicated browser profile for Web3 activities, and remove unnecessary extensions.

Advanced Usage & Developer Notes

Integrating Trezor Bridge into apps

Developers can integrate Bridge using Trezor Connect SDK which handles communication and standardizes flows for account discovery, transaction signing and more. Respect user consent and never attempt to sign transactions silently.

Custom RPCs & Networks

Trezor Bridge supports signing on many EVM and non-EVM chains. When interacting with custom networks or smart contracts, always verify raw transaction data on‑device as contract calls can contain complex parameters.

CLI & Troubleshooting for developers

Advanced users can use Trezor's command‑line tools for automation or diagnostics. Use these tools cautiously; automated signing scripts can be risky if misconfigured.

Troubleshooting — Common Issues & Fixes

Bridge not running or website can't detect device

  1. Ensure Trezõr brïdge® is running in the system tray/menu bar.
  2. Restart Bridge and the browser.
  3. Try a different USB cable or port. Avoid USB hubs.
  4. Check OS permissions (macOS: System Preferences → Security & Privacy; Windows: check driver installation and SmartScreen prompts).

Browser compatibility

Use Chromium-based browsers (Chrome, Edge, Brave) for the smoothest experience. Some browsers may restrict WebUSB/WebHID APIs or require flags to be enabled.

Device locked or app not open

Unlock your Trezor and open the relevant on‑device app (e.g., Ethereum app for signing ETH transactions) before attempting to use Bridge.

Privacy Considerations

Trezor Bridge runs locally and only transmits information between your browser and the connected device. It does not upload your private keys or recovery seed to any remote servers. However, keep in mind:

  • Connected dApps may read public addresses and on‑chain activity — be mindful of privacy when using shared addresses.
  • Some third‑party wallets may collect metadata (connection timestamps, addresses used) — review their privacy policies.

FAQ

Q: Do I need Trezor Bridge to use my Trezor?
A: For many browser-based wallet interfaces and dApps, yes — Bridge simplifies and secures the connection. Some alternatives (native integrations, browser extensions) might exist but Bridge is the recommended desktop connector.

Q: Is Bridge open source?
A: Components of Trezor's software stack are open source — check the official Trezor repositories for licensing and source code.

Q: Can Bridge sign transactions without user confirmation?
A: No. All sensitive operations require explicit physical confirmation on the Trezor device.