The Mozilla VPN extension may display the message: ''''A program on your computer is interfering with the Mozilla VPN extension.'''' This issue is often caused by the Killer Network Service (KNS), which monitors and prioritizes network traffic. Unfortunately, KNS can conflict with the VPN’s functionality, particularly App Exclusions and the Firefox extension. This guide will show you how to disable the specific setting of KNS that creates this behavior, in order to restore a smooth operation of Mozilla VPN. =Disable Killer Network Service (KNS)= The Killer Network Service (KNS) is a software typically pre-installed on gaming laptops or high-performance PCs with intel hardware. It helps prioritize network traffic for activities like online gaming or streaming. While this feature is beneficial in some cases, it can interfere with Mozilla VPN's browser extension and the App Exclusions functionality. Please follow these steps to resolve this issue: #Open the Windows menu and use the search function to look for the '''Killer Intelligence Center'''. #Once open, on the right side of the application, locate the '''Quick Settings''' section. #;[[Image:KNS Quick settings]] #Click the toggle next to '''Prioritization Engine''' to turn it off. #;[[Image:Disable prioritization engine|width=250]] You are done! This should resolve any conflict with the Mozilla VPN extension and/or the App Exclusions functionality. Please note that the Firefox extension may continue to show you this warning, but provided the Prioritization Engine is disabled, everything should work correctly. At that point, you should feel free to simply dismiss the notification in the Mozilla VPN extension. To re-enable KNS’s Prioritization Engine, you can simply follow these same steps and turn the toggle back on. =Related articles= *[[How will DNS work when using the VPN extension]] *[[Disable VPN protection for a specific website]]

The Mozilla VPN extension may display the message: 'A program on your computer is interfering with the Mozilla VPN extension.'

This issue is often caused by the Killer Network Service (KNS), which monitors and prioritizes network traffic. Unfortunately, KNS can conflict with the VPN’s functionality, particularly App Exclusions and the Firefox extension. This guide will show you how to disable the specific setting of KNS that creates this behavior, in order to restore a smooth operation of Mozilla VPN.

Disable Killer Network Service (KNS)

The Killer Network Service (KNS) is a software typically pre-installed on gaming laptops or high-performance PCs with intel hardware. It helps prioritize network traffic for activities like online gaming or streaming.

While this feature is beneficial in some cases, it can interfere with Mozilla VPN's browser extension and the App Exclusions functionality. Please follow these steps to resolve this issue:

1. Open the Windows menu and use the search function to look for the Killer Intelligence Center.
2. Once open, on the right side of the application, locate the Quick Settings section.

   

3. Click the toggle next to Prioritization Engine to turn it off.

   

You are done! This should resolve any conflict with the Mozilla VPN extension and/or the App Exclusions functionality. Please note that the Firefox extension may continue to show you this warning, but provided the Prioritization Engine is disabled, everything should work correctly. At that point, you should feel free to simply dismiss the notification in the Mozilla VPN extension.

To re-enable KNS’s Prioritization Engine, you can simply follow these same steps and turn the toggle back on.

Related articles

• How will DNS work when using the VPN extension
• Disable Mozilla VPN protection for a specific website