Facebook automatically organizes your private messages into threads, so you can follow a conversation in the same way you would an IM chat or forum discussion. Once a message thread gets too long, however, you may have difficulty finding information from previous messages. Facebook has a built-in search feature to help you find specific details, such as words or phrases, in a message thread.
Click the "Messages" icon in the top-left menu.
Select a message from the drop-down menu, or click "See All Messages," and scroll down to select the message thread you wish to search.
Type the word or phrase you want to find in the "Search This Conversation" box, at the top right of the page.
Click the "Search" button (magnifying glass) or just press "Enter" to search. The thread will refresh, showing you the detail you requested.
Tips & Warnings
- To search other Facebook content, press the "Ctrl" and "F" keys at the same time to bring up your browser's "Find" function.