The Usefulness Extension is a free Chrome add-on developed by mroscarfinley. Designed specifically for school kids, this extension offers a range of helpful features to enhance their online experience.

One of the key features of the Usefulness Extension is the random number generator, which can be useful for various school activities and assignments. Additionally, the extension provides inspirational quotes to uplift and motivate users, preventing them from succumbing to feelings of depression while studying.

To add a touch of fun, the Usefulness Extension also includes annoying noises such as an airhorn and the popular "yee" sound. These sound effects can be entertaining and offer a brief break from intense study sessions.

It is worth noting that the developer is actively working on improving the extension. The recent update, version 1.2, introduced a high score feature using the Chrome storage API. However, the snake game bug is still present, although the developer has assured that it will be fixed soon.