Cool Previews is a browser extension designed specifically for Mozilla Firefox, enabling users to view website previews before clicking on links. By simply hovering over a link, users can activate the Cool Previews icon, which opens a small window displaying a snapshot of the webpage. This functionality allows users to assess the content of a site without fully navigating to it, providing a convenient way to determine if a website is relevant or trustworthy.

This extension is particularly beneficial for enhancing online safety, as it helps users identify potentially malicious sites before accessing them. However, it is important to note that Cool Previews is no longer receiving updates, which may affect its compatibility with future Firefox versions. Despite this limitation, it remains a valuable tool for users looking to streamline their browsing experience.