
Trezor Bridge is the official background software developed by SatoshiLabs that enables secure communication between your Trezor hardware wallet (Model One, Model T, or Safe 3/5) and web or desktop applications such as Trezor Suite, MetaMask, Electrum, and thousands of third-party services. Released in its latest stable version in 2025 (v2.0.35+), Trezor Bridge replaced the older Trezor Chrome extension and is now the recommended and only supported method for connecting your device on desktop operating systems.
Without Trezor Bridge running in the background, your computer cannot recognize the Trezor device when plugged in, resulting in “device not found” errors. It acts silently as a secure transport layer, ensuring private keys never leave your hardware wallet while still allowing full interaction with blockchain networks.
Since Google removed support for Chrome Apps and legacy extensions, Trezor Bridge has become mandatory for:
“Bridge not running” error? Restart Trezor Bridge from your system tray (Windows) or menu bar (macOS). On Linux, run systemctl --user restart trezord.
Port 21325 blocked? Corporate firewalls sometimes block Bridge. Ask your admin to allow outbound traffic on port 21325.
Multiple versions conflict? Uninstall old Trezor Chrome extensions and any previous Bridge installers before installing the latest version.
In 2025, Trezor Suite web version (suite.trezor.io) can work via WebUSB on Chrome/Edge without Bridge on most modern systems. However, Trezor Bridge is still required for:
Only download Trezor Bridge from trezor.io or the direct links above. Fake installers are a common phishing vector in 2025. Always verify the digital signature of the installer matches SatoshiLabs s.r.o.
Trezor Bridge itself does NOT store private keys, seeds, or passwords. It is purely a communication layer and has been open-source audited multiple times.
With Trezor Bridge properly installed, your hardware wallet experience becomes seamless, secure, and future-proof. Start using the full power of your Trezor device today.