My Friend Catherine is a free Chrome add-on developed by Sam J Hill. It falls under the category of Browsers and is specifically listed under the subcategory of Add-ons & Tools. This add-on aims to replace the phrase 'my cat' with 'my friend Catherine' in your browser.

With My Friend Catherine, you can easily add a touch of humor to your web browsing experience. Inspired by XKCD, this add-on injects a bit of fun into your daily online activities. Whether you're reading articles, browsing social media, or even writing emails, My Friend Catherine will automatically replace any instance of 'my cat' with 'my friend Catherine'.

The add-on is lightweight and easy to install, making it a hassle-free addition to your Chrome browser. So if you're looking to add a little entertainment to your web browsing, give My Friend Catherine a try and see how it transforms your online interactions.