The Unofficial Tweakers.net Nieuws Notifier is a Chrome add-on developed by Nactive. It is a free program that falls under the category of Browsers, specifically Add-ons & Tools.

This add-on provides a notification whenever a new news item is posted on Tweakers.net. However, it is important to note that the popup feature of the extension is currently not functioning due to the removal of the API by Google starting from Chrome version 28. Unfortunately, there is no viable alternative that works well on all systems, including Windows, Linux, and OSX. The developer mentions the possibility of implementing a version that will only work on Windows and Chrome OS in the future.

There have been some recent changes to the add-on. Users are now required to have at least one news item in their tracker settings. Additionally, the extension is currently not compatible with the Post history extension, which is believed to be responsible for marking news items as read.

Please note that this version is currently in beta and may not have undergone extensive testing. If you encounter any issues, you can contact the developer, Nactive, on the Tweakers platform.

Overall, the Unofficial Tweakers.net Nieuws Notifier is a useful add-on for staying updated with the latest news on Tweakers.net, although the popup feature is currently unavailable.