Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Error 87: The parameter is incorrect.

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by MagsMoz

more options

I have just updated Mozilla VPN. Now when I attempt to load Mozilla VPN I receive the message "Loadlibrary failed with error 87: The parameter is incorrect." and nothing happens. I have Windows 10, have run Windows Update a few times, uploaded and installed all updates found and the error still occurs.

I have just updated Mozilla VPN. Now when I attempt to load Mozilla VPN I receive the message "Loadlibrary failed with error 87: The parameter is incorrect." and nothing happens. I have Windows 10, have run Windows Update a few times, uploaded and installed all updates found and the error still occurs.

All Replies (1)

more options

Hi there,

Unfortunately we had a problem regarding this after our last update, we apologize for the inconvenience!

Try logging out of the Mozilla VPN (you can do this by clicking on the gear icon in the top right corner of the app. Then scroll down to "Logout"), uninstall the app, download the VPN again, and follow the steps to install it. Logging out is an important part of the process, as it deletes some files that would otherwise not be eliminated.

Reinstalling the VPN should fix the issue, but if you keep running into the same error please do not hesitate to contact us directly so we can assist you more efficiently.

Best regards, Mags