The Textbox Character Count Chrome extension is a useful tool for counting the number of non-whitespace characters in textboxes. Developed by Michael Slevin, this extension is specifically designed to work on Professor Staley's IHS course pages.

With this extension installed, you can easily keep track of the character count as you type in textboxes. The character count is displayed above the textboxes, making it convenient to monitor your input. This feature can be particularly helpful when you need to adhere to specific character limits or when you want to ensure your text fits within a certain space.

The Textbox Character Count Chrome extension is free to use, and it falls under the category of Browsers with a subcategory of Add-ons & Tools. If you are a student or user of Professor Staley's IHS course pages, this extension can be a valuable addition to your browsing experience.