Staff at the Department of Prime Minister and Cabinet have used up more than 130 pages of correspondence talking about a web plug-in that replaces pictures of Tony Abbott with ‘‘cute kittens’’.

But after charging the program’s creator $700 for access to those pages, what they actually said is a mystery, for now.

The browser extension results in pictures of Tony Abbott being replaced with "cute kittens".

Developers Dan Nolan and Ben Taylor and designer Matt Kelsh made the "Stop Tony Meow" browser extension in January. Downloaded more than 50,000 times, it automatically swaps any picture of Mr Abbott encountered online with pictures of cats.

Curious as to what the Prime Minister and his staff thought of the extension, Mr Nolan submitted a Freedom of Information request to the Department of the Prime Minister and Cabinet for any correspondence that mentioned the words "Stop Tony Meow".