Chrome JS Error Icon is a free Chrome extension developed by Valentin Brosseau. This add-on falls under the Browsers category, specifically in the Add-ons & Tools subcategory.

The main purpose of Chrome JS Error Icon is to provide a visual reminder when something goes wrong on the current tab. It tracks JavaScript errors on webpages without requiring users to open the development console. This can be particularly useful for developers, testers, or anyone interested in monitoring JavaScript errors on the websites they visit.

Some of the key features of Chrome JS Error Icon include the ability to report JavaScript errors, display a counter of current errors in pages, report 404 HTTP errors, report console.error problems, and report unhandled promise rejection warnings. With these features, users can easily identify and track JavaScript errors on the websites they browse, allowing for quick troubleshooting and debugging.

Overall, Chrome JS Error Icon is a handy extension for those who want to stay informed about JavaScript errors on the webpages they visit. Its simple yet effective functionality makes it a valuable tool for developers and anyone interested in web development.