Fix “Untrusted Application Launcher” for Tor Browser on Linux
When launching Tor Browser on Linux, you might see an “Untrusted application launcher” warning. This happens even if Tor was downloaded from the official site. The issue isn’t Tor. It’s how Linux treats .desktop launcher files.
Why the Warning Appears
Linux desktop environments don’t trust launcher files that:
- Live in non-standard locations (like your home folder)
- Aren’t marked as executable
This is a security feature, not a bug.
The Proper Fix
Move the Tor launcher to the user applications directory & mark it executable.
Steps
mkdir -p ~/.local/share/applications
mv ~/tor-browser/start-tor-browser.desktop ~/.local/share/applications/
chmod +x ~/.local/share/applications/start-tor-browser.desktop
Adjust the path if your tor-browser folder is elsewhere.
What This Fix Does
- Removes the warning permanently
- Adds Tor Browser to your Application Menu
- Allows pinning to panel or favorites
No root access. No system-wide install. No security compromise.
Conclusion
The “Untrusted application launcher” warning is about desktop integration, not Tor itself. Placing the launcher in ~/.local/share/applications tells Linux it’s a legitimate app. Once done, Tor launches cleanly like any other application.