ARIA DevTools is a Firefox extension designed to facilitate the creation of accessible web applications. This powerful tool allows developers to visualize their websites as they would be interpreted by screen readers, providing crucial insights into how users with disabilities experience their content. By displaying all page elements according to their ARIA roles, it helps to identify areas that need improvement, such as missing ARIA labels and misapplied roles.

The extension is particularly beneficial for developers aiming to enhance keyboard support and overall accessibility in web projects. With ARIA DevTools, the testing and development process becomes more efficient, allowing for a more inclusive web environment. This open-source tool is available on GitHub, making it a valuable resource for anyone dedicated to improving web accessibility.