EnBref adds an AI summary layer directly inside the YouTube interface. Open any video and get a structured breakdown with clickable timestamps that jump to the exact moment, highlighted key terms, and a configurable format — adjust the focus, length, and output language to match what you actually need. The built-in chat lets you ask specific questions about the video content without switching tabs or copy-pasting transcripts elsewhere. Useful for students reviewing lectures, researchers scouting sources, or professionals trying to pull signal from long-form content quickly. Nothing to set up beyond installing the extension — the controls sit one click away from the standard player.