Overview: Connecting a hardware wallet to web apps requires a secure, reliable middle layer. Trezor Bridge served as that layer — enabling browsers and desktop apps to talk safely to Trezor devices, replacing older browser plugins and improving cross-platform compatibility.
Important: The standalone Trezor Bridge has been deprecated in favor of Trezor Suite and newer helper services. Users should prefer Trezor Suite or web flows for best compatibility and security.
Hardware wallets are the root of trust: private keys live on the device and never leave it. A bridge or local helper (like trezord) only relays messages (protobuf) between host apps and the device, enabling actions such as signing transactions while leaving secrets on the device. This separation limits attack surface on the host computer.
Trezor Suite (web & desktop) is the recommended user experience — it is maintained, signed, and distributed via official channels. Where web APIs support direct access (WebUSB), modern flows avoid the need for legacy Bridge binaries. For advanced integrations, trezord and official developer tooling provide supported alternatives to legacy Bridge. Always use official downloads and verify signatures/release notes before installing.
Verify transactions and addresses on the hardware device display. Keep firmware and Suite up to date. Remove deprecated standalone Bridge installations to avoid conflicts. Follow Trezor's published security guidance to understand threat models and defenses.