Troubleshooting guide

Sami Vänttinen edited this page Dec 4, 2018 · 3 revisions

Here's a general checklist for KeePassXC-Browser related connection issues:

1) After enabling Browser Integration and support for your browser

Depending on the operating system the org.keepassxc.keepassxc_browser.json native messaging script file shoud be installed to these locations:


AppData\Local\keepassxc or to the KeePassXC directory if using portable version. Also there should be a registry entry found in the following location(s):

  • Chrome: HKEY_CURRENT_USER\\Software\\Google\\Chrome\\NativeMessagingHosts\\
  • Chromium: HKEY_CURRENT_USER\\Software\\Chromium\\NativeMessagingHosts\\
  • Firefox: HKEY_CURRENT_USER\\Software\\Mozilla\\NativeMessagingHosts\\
  • Vivaldi: HKEY_CURRENT_USER\\Software\\Vivaldi\\NativeMessagingHosts\\


  • Chrome: ~/.config/google-chrome/NativeMessagingHosts
  • Chromium ~/.config/chromium/NativeMessagingHosts
  • Firefox: ~/.mozilla/native-messaging-hosts
  • Vivaldi: ~/.config/vivaldi/NativeMessagingHosts


  • Chrome: ~/Library/Application Support/Google/Chrome/NativeMessagingHosts
  • Chromium: ~/Library/Application Support/Chromium/NativeMessagingHosts
  • Firefox: ~/Library/Application Support/Mozilla/NativeMessagingHosts
  • Vivaldi: ~/Library/Application Support/Vivaldi/NativeMessagingHosts

If you use any other browser the configuration location can vary. In these cases the script file must be copied manually.

Other browsers

Some example Linux paths:

  • Google Chrome Beta: ~/.config/google-chrome-beta/NativeMessagingHosts
  • Google Canary (Unstable): ~/.config/google-chrome-unstable/NativeMessagingHosts
  • Waterfox: ~/.waterfox/native-messaging-hosts
  • Iridium: ~/.config/iridium/NativeMessagingHosts

2) Check the native messaging script file path and extension ID's

After finding the org.keepassxc.keepassxc_browser.json check the path variable inside it. It should point to the exact location to the KeePassXC binary. In Windows this variable can also exists without a path.

The extension ID under allowed_origins should be chrome-extension://oboonakemofpalcgghocfoadofidjkkk/ for Chromium-based browsers and under allowed_extensions for Firefox. There can be another ID seen with Chromium. This is the older version of the extension and it will be removed in the future from the script file.

With Chromium-based browsers you can check that the extension ID is the same with what is shown at the extensions page.

3) Check if keepassxc-proxy is launched and running

Connection between KeePassXC and the browser extension is managed by keepassxc-proxy binary. Make sure this is up and running. If not try to start it manually. Under macOS the binary can be found inside the at Contents/MacOS/.

If the binary doesn't start on macOS, please check the binary linking with the following command: otool -L /Applications/ It should show the following for QtNetwork and QtCore frameworks: @executable_path/../Frameworks/QtNetwork.framework/Versions/5/QtNetwork @executable_path/../Frameworks/QtCore.framework/Versions/5/QtCore

It's possible to use KeePassXC without the proxy feature. This means the connection between the extension and KeePassXC is direct and KeePassXC must not be launched before the browser does it (at the startup or from the popup). This mean the extension cannot be connected to KeePassXC on-the-fly. Proxy can be disabled from the Advanced tab of Browser Integration settings. This is not the recommended setting.

4) Debug the extension itself

If everything else seems to be OK but you still have issues please try to debug the extension.

Chromium-based browsers:

  • Go to the extension page, check Developer mode
  • Click backgroung page link after the Inspect views: text


  • Go to about:debugging and check Enable add-on debugging
  • Find KeePassXC-Browser and click Debug

Console tab should now show any error messages the extension writes. If you are a developer and know these things you can use the Sources tab and debug the extension and find the exact point where it fails.

Debug the content script

For debugging autocomplete, password generator, or anything else that interacts with the web page itself, content scripts must be debugged.

Chromium-based browsers:

  • Use the menu View -> Developer -> Developer Tools or with right mouse click on the page and select Inspect
  • Go to Sources tab and use the double arrow on the top left of the Developer Tools to view Content scripts
  • Open top tree and search for KeePassXC-Browser. Open keepassxc-browser.js


  • Use the menu Tools -> Web Developer -> Debugger
  • Go to Sources tab on the left and search for KeePassXC-Browser. Open keepassxc-browser.js
You can’t perform that action at this time.
You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session.
Press h to open a hovercard with more details.