Trezor Bridge is (historically) the local communication daemon that allowed desktop browsers and apps to interact with your Trezor hardware wallet over USB. It acted as a secure intermediary between a web application (or app) and the USB device to pass messages without exposing raw USB control to the browser.
Trezor’s ecosystem has moved strongly toward the Trezor Suite application and direct WebUSB support in browsers; as a result the standalone Trezor Bridge has been officially deprecated and users are recommended to transition to Trezor Suite or follow the deprecation guidance published by Trezor. :contentReference[oaicite:0]{index=0}
Deprecation means the standalone Bridge may not receive updates and might be phased out in future releases. If you have Bridge installed, Trezor recommends uninstalling when instructed and using Trezor Suite (desktop or web) to avoid conflicts. :contentReference[oaicite:1]{index=1}
The Bridge daemon typically runs locally and exposes a small HTTP/WebSocket API that client apps use. The official implementation (trezord / trezord-go) is open source and maintained in the Trezor organization repositories; it uses HID/USB layers to forward protobuf-style messages to the device. :contentReference[oaicite:2]{index=2}
Historically, browsers without WebUSB relied on Bridge to communicate with Trezor devices; where WebUSB is available, modern Trezor tooling increasingly opts to use it directly (reducing need for Bridge). :contentReference[oaicite:3]{index=3}
If you need Bridge packages or installers (legacy), Trezor hosts builds and installers on their data distribution endpoints; for current recommended workflows, download and verify the Trezor Suite desktop app from the official site. Use the official pages below for downloads and verification. :contentReference[oaicite:4]{index=4}
Only install Bridge if a very specific legacy workflow requires it — prefer Suite or direct WebUSB. If instructed, download Bridge from the Trezor distribution index and verify signatures before running installers. :contentReference[oaicite:8]{index=8}
Trezor’s documentation notes that WebUSB availability affects browser support: Chromium-based browsers (Chrome, Edge, Brave, Opera) generally have better WebUSB support for the web Suite experience, while other browsers may be limited. Check OS and browser guidance before choosing Bridge vs Suite. :contentReference[oaicite:9]{index=9}
Trezor historically supports recent Windows, macOS, and major Linux distributions; very old operating systems (e.g., unsupported Windows versions) may not be guaranteed to work with Bridge or Suite. Always check official OS requirements. :contentReference[oaicite:10]{index=10}
Only use downloads and instructions from official trezor.io domains or the Trezor GitHub organization. Verify signatures/checksums for installers and never share seed phrases — Trezor support will never ask for a seed. Keep firmware up to date using official Suite guidance. :contentReference[oaicite:11]{index=11}
If you’ve migrated to Trezor Suite or your vendor explicitly instructs you to stop using Bridge, uninstall the standalone Bridge to prevent conflicts. Consult the Trezor deprecation guide for precise removal steps. :contentReference[oaicite:12]{index=12}
- Device not detected: check USB cable/port, try another port, and ensure Suite/Bridge has necessary permissions.
- Browser blocked access: use a supported Chromium-based browser or install Suite.
- Old Bridge version: update from official distribution or switch to Suite.
Hit the Trezor Support portal or official forum for guided troubleshooting and knowledge-base articles. Support and knowledge-base articles are maintained on the official site. :contentReference[oaicite:13]{index=13}