Kitten Block is a subscription-based browser extension for Firefox that aims to enhance the browsing experience by redirecting users away from the Daily Mail and Daily Express websites. Instead of accessing these popular UK tabloid newspapers, users are automatically redirected to a curated selection of adorable kitten photos from a dedicated website. This functionality is particularly useful for individuals who find the content of these tabloids unappealing or offensive.

The extension operates with a straightforward approach, providing no configuration options or override features. Users can easily disable the extension through the typical browser methods if they wish to access the original sites again. Kitten Block serves as a simple yet effective tool for those looking to curate their online experiences in a more pleasant direction.