Yahoo! News Feed Filter is a Chrome extension developed by Shipped Scripts LLC. It is a free program in the Browsers category, specifically in the Add-ons & Tools subcategory. This extension allows users to filter news agencies/categories and creates a cache to filter read articles, making time spent reading news on Yahoo News more efficient.

With Yahoo! News Feed Filter, users have several features at their disposal. Firstly, the "Show Reasons" feature displays any filtering in the news feed, allowing users to track filtered content. The "Filter Ads" feature removes ads from the news feed, while keeping the side columns intact. The "Cache" feature enables caching, filtering out previously read articles and caching headlines to remove duplicate news articles in the same session.

Additionally, Yahoo! News Feed Filter offers category filtering, allowing users to filter news by specific categories such as Opinion or Health. Users can also filter out specific news feed organizations they may not be interested in, such as Fox or CNN. Furthermore, the extension provides topic/title filtering, where users can add terms they don't want to read about. If a news article contains a word or phrase that has been added to the filter, that article will not be shown.

Please note that Yahoo! News Feed Filter requires storage permission to save filter settings and for caching the URL of news articles that have been read. It is important to mention that this extension only works on Yahoo news sites. Any captured data is only saved on the user's local system and is never shared with external parties.