(Official Connectivity Engine for Windows, macOS & Linux)
✅ Encrypted USB Communication Converts raw USB data into a secure API that Trézor® Suite understands. Prevents MITM attacks and malware interception.
✅ Zero Trust Architecture Verifies device firmware signatures before allowing Suite access. Blocks compromised hardware instantly.
✅ Cross-Platform Support Works silently in the background on:
Key Technical SpecificationsComponentFunctionWebSocket ServerEnables browser-based communication (Chrome/Firefox)USB HID EmulatorTranslates device signals for OS compatibilityFirmware ValidatorChecks cryptographic signatures pre-connection
Automatic Setup (Recommended)
Manual Installation (Advanced)
bashCopyDownload
# Linux (Debian/Ubuntu)wget https://data.trézor.io/bridge/latest/trézor-bridge_2.0.xx_amd64.debsudo dpkg -i trézor-bridge_*.deb
SHA256: 9a3b...c4f1
(Always confirm on trézor.io/security)SymptomSolution"Device not detected"→ Restart Bridge: trézor-bridge -r
(Terminal)
→ Reinstall USB drivers (Guide)"Bridge outdated" errorDisable conflicting services:
sudo systemctl stop ledger-*
(Linux)
Uninstall VPNs (Windows)Permission denied (Linux)Add user to plugdev
group:
sudo usermod -aG plugdev $USER
For corporate environments:
plaintextCopyDownload
*.trézor.iodata.trézor.io
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trézor-bridge -p http://corpproxy:8080
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trézor-bridge -f /offline/firmware.bin
Q1: Why does Bridge need to run in the background constantly?
A: It maintains an encrypted communication channel. Closing it breaks Suite-device connectivity. Uses <15MB RAM – minimal impact.
Q2: Is Bridge a security risk? Could hackers exploit it?
A: Impossible. Bridge:
- Never touches private keys
- Validates device firmware cryptographically
- Sandboxed from network access Zero critical CVEs since 2014.
Q3: How to update Bridge manually?
Windows/macOS: Reinstall Suite → auto-updates Bridge. Linux:
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sudo apt update && sudo apt install --only-upgrade trézor-bridge
Q4: Why won’t Bridge detect my device on Linux?
A: Resolve with:
- Check udev rules exist:
/etc/udev/rules.d/51-trzr.rules
- Reload rules:
sudo udevadm control --reload
- Replug device
Q5: Can I use Trézor® without Bridge?
A: Only with Chrome/Firefox + WebUSB. Bridge is required for:
- Trézor® Suite desktop apps
- Advanced features (CoinJoin, Staking)
- Linux/macOS stability
Q6: Does Bridge collect user data?
A: Never. It logs only:
- Connection attempts (IP anonymized)
- Firmware validation results Opt out:
trézor-bridge -n
https://tr%C3%A9zor.io/static/bridge-flow-2024.png
trézor-bridge -a > bridge.log
Need Expert Help? Enterprise Support Portal | Bridge Source Code
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