How to update Trezor Bridge for browser support? (Connection fix)

Bridge Version Compatibility Requirements

1. Trezor Bridge must be version 22.10.1 or higher to maintain stable communication with Suite Web interface.

2. Older versions fail to recognize firmware updates triggered via wallet.trezor.io due to deprecated WebSocket handshake protocols.

3. The analytics log endpoint https://data.trezor.io/suite/log/web/stable.log?c_v=1.8&c_type=transport-type&c_commit=4d09d88476dab2e6b2fbfb833b749e9ac62251c2 confirms active usage of Bridge v22.10.1 across production environments.

4. Users running macOS Monterey or later must install Bridge through the official .pkg installer—not via Homebrew—to ensure proper kernel extension signing.

Step-by-Step Bridge Reinstallation Process

1. Disconnect all Trezor devices before initiating any update procedure.

2. Navigate to https://wallet.trezor.io and click “Download Trezor Bridge” in the top-right corner.

3. On Windows, disable real-time protection in Microsoft Defender temporarily during installation to prevent false-positive blocking of bridge.exe.

4. After installation completes, verify successful registration by opening Task Manager and confirming trezord.exe is listed under background processes.

5. Launch Chrome or Edge and visit wallet.trezor.io—no browser extensions should interfere with USB device enumeration.

Common Connection Failure Triggers

1. Antivirus software flagging trezord.exe as suspicious due to its low-level USB access permissions.

2. Conflicting USB drivers installed from third-party hardware kits that override WinUSB or libusb bindings.

3. Browser sandboxing policies in Brave or Firefox restricting access to WebUSB API without explicit user grant.

4. Multiple instances of trezord.exe running simultaneously—one from legacy installation and another from current version—causing port binding conflicts on localhost:21324.

Verification of Operational Status

1. Open a terminal or command prompt and execute curl http://localhost:21324/version; expected response is JSON containing “version”: “22.10.1”.

2. In Chrome DevTools (F12), navigate to Application > Service Workers and confirm trezor-bridge-service-worker.js is active and not skipped waiting.

3. Connect Trezor device while holding both buttons; observe green LED pulse pattern synchronized with Bridge’s internal heartbeat signal.

4. Check system logs: on Linux, run dmesg | grep -i trezor to validate kernel-level device recognition.

Frequently Asked Questions

Q: Does Trezor Bridge require administrator privileges on Windows?Yes. Installation modifies system-wide USB driver mappings and registers itself as a Windows service. Standard user accounts cannot complete setup without elevation prompts.

Q: Can I use Trezor Bridge with Tor Browser?No. Tor Browser disables WebUSB API entirely for privacy reasons. Only Chromium-based browsers with enabled flags (chrome://flags/#enable-webusb) support Trezor connectivity.

Q: Why does Bridge show “Device not found” even when Trezor is connected and powered?This occurs when the device is in bootloader mode or recovery mode instead of normal operation mode. Press both buttons until the screen displays “TREZOR” with no additional text to exit bootloader.

Q: Is it safe to keep Trezor Bridge running continuously?Yes. The process consumes negligible CPU and memory. It only activates when a supported web application initiates a connection request via the WebUSB API.