The secure software link between your Trezor wallet and the web.
The **Trezor Bridge** is a small, essential piece of software that must be installed on your computer. It serves as a secure local interface, allowing your web browser to communicate with your physical Trezor device via USB. Without it, web-based applications like the **Trezor Web Suite** cannot detect or interact with your hardware wallet.
If you use the **Trezor Suite Desktop** application, the Bridge is typically not needed because the desktop application includes the communication service. However, it is mandatory when using the **Trezor Suite Web** application or any third-party web wallet (e.g., MyEtherWallet, Exodus Web) that integrates with Trezor.
**Never download** the Bridge from third-party sites. Always start at the main Trezor page, which directs you to the certified download.
Run the downloaded installer. The Bridge is designed to install as a background service and will automatically start when your computer boots up. Look for the icon in your system tray.
The fastest way to ensure the Bridge is running is to visit its local diagnostic URL. This should display a small 'OK' status message.
Try restarting your computer, checking your firewall settings, or trying a different USB port. Older operating systems might also encounter compatibility issues.
Trezor Bridge is **open source**, which allows the community to verify its security. Always accept automatic updates to ensure you have the latest security patches.
If you no longer use the web interface, the Bridge can be removed via your operating system's standard "Add or Remove Programs" or "Applications" panel.