Executive Summary
Trezor Bridge traditionally served as the local connector between a physical Trezor device and browser-based wallets. It ensured secure communication over USB by running a small local service that browser-based wallets or Trezor Suite (desktop/web) could reach. Since the product architecture has evolved, Trezor emphasizes using the integrated Trezor Suite and modern browser connection methods; the standalone Bridge has been deprecated and replaced with improved Suite-driven flows and developer tools. :contentReference[oaicite:1]{index=1}
What Trezor Bridge Did (Technical Overview)
At its core, Bridge provided a small local HTTP/websocket interface (a daemon) that translated browser requests into USB HID or WebUSB operations with the hardware wallet. This solved compatibility issues between browsers and USB APIs, ensured consistent behavior across operating systems, and allowed third-party apps to call a stable API for signing and retrieving public keys.
Core responsibilities
- Expose a local web endpoint for browser-to-device communication.
- Manage sessions and permissions so the device is only accessed after user approval.
- Provide an update path (bridge updates) and compatibility layer for apps that relied on it.
Why Trezor is Moving Away from a Standalone Bridge
Industry web standards and the Trezor product strategy have changed. Browsers and wallets increasingly support native secure paths (WebHID, WebUSB) and the unified Trezor Suite delivers a more integrated experience. To reduce user confusion and overlapping services, Trezor deprecated the standalone Bridge and consolidated functionality into Suite and updated developer tooling. If you still have Bridge installed, official guidance recommends moving to the latest Trezor Suite or following the migration steps in Trezor’s guide. :contentReference[oaicite:2]{index=2}
Practical impact for users
- Most users will use Trezor Suite (desktop or web) for device management going forward.
- Third-party integrations should migrate to Trezor Connect or modern browser APIs supported by Trezor Suite.
- If Bridge is installed, follow the uninstall or migration instructions to avoid conflicts with newer Suite releases.
Security Considerations
Trezor’s security model centers on keeping private keys off-host (on the hardware device), verifying operations on the device screen, and ensuring software layers (Bridge/Suite/Connect) are open-source and auditable. Regardless of connector choice, users should:
Checklist
- Always verify you downloaded software from the official domain (trezor.io) and check signatures. :contentReference[oaicite:3]{index=3}
- Keep firmware up to date using official firmware channels and follow release notes. :contentReference[oaicite:4]{index=4}
- Confirm every transaction on the device screen (never trust host UI alone).
- Avoid installing untrusted Bridge/third-party connector packages from unofficial sites.
Developer Notes & Migration Paths
Developers integrating Trezor should use the maintained developer stacks in the Trezor Suite monorepo, Trezor Connect, or the trezord-go (Bridge daemon) code if you need low-level compatibility or are maintaining legacy integrations. Official GitHub organization repositories provide source code, issues, and CI for those components. :contentReference[oaicite:5]{index=5}
Recommended steps for integrators
- Evaluate whether Trezor Connect (browser-friendly SDK) satisfies your needs before relying on local Bridge-like services. :contentReference[oaicite:6]{index=6}
- If your app used the standalone Bridge, plan to support Suite or Connect and test across browsers (Chrome/Firefox) and OSes.
- Review and pin dependency versions from the trezor GitHub org and subscribe to changelog/firmware updates.
Best Practices for End Users
Users should prioritize official sources, verify downloads, and move to Trezor Suite for the smoothest experience. For advanced use cases (development, testing), the Trezor GitHub repos and user environment tooling provide safe, reproducible environments.
Quick user flow
- Download Trezor Suite → Connect your device → Follow on-device confirmations → Manage assets.
- If you encounter legacy Bridge prompts, follow the official deprecation/uninstall guide to avoid conflicts. :contentReference[oaicite:7]{index=7}
Resources (10 official links)
Official pages and developer repos for downloads, docs, and developer tools.