Mozilla VPN won’t connect or keeps disconnecting - How to fix

No one has helped translate this article yet. If you already know how localizing for SUMO works, start translating now. If you want to learn how to translate articles for SUMO, please start here.

If you find that Mozilla VPN is disconnecting or turning off after being activated, you can try the below steps to resolve this issue. These steps are also helpful if Mozilla VPN is connected, but websites fail to load.

Enable port 53 forwarding (All platforms)

  1. Open Mozilla VPN.
  2. Click (or tap) the Settings vpn settings icon icon.
  3. Click (or tap) Network settings.
  4. Check the Tunnel VPN through port 53/DNS option.
  5. Turn the VPN on.

To learn more about how to disguise Mozilla VPN as DNS traffic using port 53, see this article.

Disable Firewalls (Desktop)

If you have a Firewall or Antivirus that also monitors your internet connection, it’s a good idea to disable them or allow an exception for Mozilla VPN. In order to do this, you will need to refer to your specific application's support documentation.

For Windows Defender Firewall

  1. In the Windows Start Menu search bar, type Allow an app through Windows Firewall and click on the first result.
  2. Click the Change Settings button at the top right of the window to make changes.
  3. The Allow another app button should highlight. Click the Allow another app button close to the bottom of the window.
  4. Click Browse.
  5. Navigate to the VPN by going through the following path: This PC > Windows (C:) > Program Files > Mozilla > Mozilla VPN > MozillaVPN.exe
  6. Click Add.
  7. Back on the Allowed apps window, make sure mozillavpn has both the Private and Public boxes next to it checked.
  8. Click OK at the bottom.
  9. Restart the system.

For macOS Application Firewall

  1. Open System Preference.
  2. Click the Security or Security & Privacy icon.
  3. Select the Firewall tab.
  4. Click the lock icon in the preference pane, then enter an administrator name and password.
  5. Click the Firewall Options button.
  6. Click the Add Application (+) button.
  7. Select Mozilla VPN.
  8. Click Add.
  9. Click OK.

Reset Mozilla VPN (All platforms)

If none of the above solutions work and Mozilla VPN keeps disconnecting, you can try resetting Mozilla VPN:

  1. Click (or tap) the Settings vpn settings icon icon.
  2. Click (or tap) the red Sign out button at the bottom of the app.
  3. Uninstall Mozilla VPN.
  4. Reinstall the application.

Full reset of Mozilla VPN (Windows)

  1. Sign out of Mozilla VPN.
  2. Uninstall the application.
  3. Clear App data.
  4. Reinstall Mozilla VPN.

Related articles

Learn more:

Was this article helpful?

Please wait...

These fine people helped write this article:

Illustration of hands

Volunteer

Grow and share your expertise with others. Answer questions and improve our knowledge base.

Learn More