Post Facto is a free Chrome add-on developed by Cameron Boehmer. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This handy tool aims to make it easier for Facebook users to find posts they have liked or commented on by using a keyword search.

With Post Facto, you no longer have to struggle to remember who posted a specific Facebook post or in which group it was shared. This add-on indexes all the posts that you have reacted to or commented on directly in your browser. It provides a simple keyboard-shortcut accessible overlay (opt-p) on facebook.com, allowing you to search for posts using keywords.

By using Post Facto, you can quickly retrieve those elusive Facebook posts from the past and save yourself the time and frustration of manually scrolling through your feed. It's a valuable tool for individuals who frequently engage with posts on Facebook and want a more efficient way to navigate their activity history.