The Daily Mail and Daily Express are popular UK tabloid newspapers:
When using the internet in the UK it's almost impossible to avoid occasionally accessing the website of one or the other, even if one finds their political and social outlook unpleasant or offensive.
KittenBlock is designed to solve this problem. It performs one simple function: if the browser is directed to either website it will be redirected instead to a selection of photos from http://www.teaandkittens.co.uk.
There is no override option, and there are no options to configure. The extension can be disabled in the usual manner should the user wish.