BlackLight is a Chrome add-on that allows users to view deleted Facebook messages in real time. With this handy tool, users can easily recover and read messages that have been deleted by the sender. When using BlackLight, deleted messages will appear in red, making them easily distinguishable from the rest of the conversation.

One of the key features of BlackLight is its real-time functionality. Users can instantly see deleted messages as soon as they are removed from the conversation. However, it's important to note that if the page is refreshed, the deleted messages will disappear. This ensures privacy and prevents accidental exposure of deleted messages to other users.

Overall, BlackLight is a useful add-on for those who want to keep track of their Facebook conversations and retrieve important information that may have been deleted. It provides a simple and intuitive interface, allowing users to easily identify deleted messages and stay up-to-date with their conversations.