Scrollbar of Contents is a free Chrome extension developed by Martin Lijanto. This handy add-on falls under the category of Browsers and specifically the subcategory of Add-ons & Tools.

The main purpose of Scrollbar of Contents is to create clickable heading markers next to the scrollbar on webpages. These markers allow users to easily navigate between different sections of a webpage, making it much quicker to find the desired information. This feature is particularly useful when dealing with long webpages that require scrolling.

Highlighted by CNET, Lifehacker, and Mashable, this extension has gained recognition for its effectiveness in enhancing web browsing experience.

To use Scrollbar of Contents, simply click on the extension icon on the toolbar after a page is loaded. This will display the heading markers. Clicking on a marker will automatically scroll to the corresponding section of the page.

Furthermore, the extension offers keyboard shortcuts for additional convenience. Pressing Shift + Alt + v will show or hide the markers, while Shift + Alt + b can be used to minimize or maximize them.

Users also have the option to customize the behavior of Scrollbar of Contents through the options page.

For those interested in exploring further, the source code, contribution opportunities, issue reporting, and feature requests can be found on the project's GitHub page at github.com/mlijanto/scrollbar-of-contents.

Overall, Scrollbar of Contents is a valuable tool for those who frequently navigate through long webpages. Its clickable heading markers make it easy to jump between sections, saving time and effort in finding specific information.