The Vital Link Between Your Wallet and The Web
Trezor Bridge is the lightweight, background application that allows your Trezor hardware wallet to communicate securely with web browsers. Ensure seamless management of your crypto assets.
*Always download software from the official trezor.io website.
What is Trezor Bridge?
Understanding the technology that powers your secure connection.
Trezor Bridge is a piece of software designed to run in the background of your computer. Its primary function is to facilitate communication between your Trezor hardware wallet and supported internet browsers. Without this bridge, your browser—which is a sandboxed environment—cannot directly access USB devices connected to your computer for security reasons.
Historically, this functionality was provided by browser extensions. However, as browser security standards evolved (specifically the deprecation of NPAPI), a standalone application became necessary. Trezor Bridge (technically known as trezord) solves this by creating a local server that listens for signals from your device and relays them securely to the web interface, such as Trezor Suite for Web or third-party wallets like MetaMask.
Key Features & Benefits
Enhanced Security
Runs as a local process with no external internet access required for the bridge itself. It only communicates between localhost and your USB port, minimizing attack vectors.
Cross-Browser Support
Works seamlessly across all major browsers including Chrome, Firefox, Brave, and Edge. No need to install specific extensions for each browser you use.
Optimized Performance
Designed to be lightweight and efficient. It runs quietly in the background, consuming minimal system resources while ensuring instant device recognition.
Automatic Updates
The bridge software is maintained to support the latest firmware updates from SatoshiLabs, ensuring your device always has the latest communication protocols.
Installation & Setup
Getting started with Trezor Bridge is a straightforward process. Follow these steps to establish a secure connection.
Download the Installer
Visit the official Trezor website (trezor.io/start) and select your device model. You will be prompted to download Trezor Bridge if it's not detected.
Run the Installation
Open the downloaded file (.exe for Windows, .dmg for macOS, .rpm/.deb for Linux). Follow the on-screen prompts. You may need to grant administrative privileges.
Clear Browser Cache
After installation, it is highly recommended to clear your browser's cache and restart the browser to ensure the new protocols are loaded correctly.
Connect Your Device
Plug in your Trezor device. The Trezor Suite web interface should now automatically detect your wallet without asking for further downloads.
Technical Note: The bridge runs a local HTTP server on port 21325. This is how the browser sends instructions to the USB device.
Uncompromising Security
Security is the cornerstone of the Trezor ecosystem. Trezor Bridge is open-source software, meaning its code is publicly available for audit by security researchers. It does not transmit any private keys or sensitive data to external servers. All cryptographic operations happen on the Trezor device itself; the Bridge merely transports the signed transaction data back to the browser.
Frequently Asked Questions
Common queries regarding Trezor Bridge installation and usage.