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YouTube Button

A quick-access summarize button that appears directly on YouTube video pages.

Overview​

When you visit a YouTube video, a lightning bolt button (⚡) appears in the video player area. Click it to instantly start summarizing the video without opening the extension popup.

Button States​

StateAppearanceMeaning
ActiveBright, clickableVideo has a transcript, ready to summarize
DisabledDimmed (40% opacity)No transcript available
Disabled (Live)Dimmed (40% opacity)Live stream, no transcript

Hover Tooltips​

The button shows localized tooltips in your selected language:

  • Active: "Summarize video"
  • No transcript: "No transcript available for this video"
  • Live stream: "Live stream — no transcript available"

How It Works​

  1. The extension detects that you're on a YouTube video page
  2. It checks if a transcript (captions) is available
  3. If available, the button becomes active
  4. Click the button to start summarization
  5. The summary appears in the extension popup

YouTube Shorts​

The button also works on YouTube Shorts. It appears in the Shorts player with the same functionality.

Transcript Detection​

The button checks for transcript availability using multiple methods:

  • YouTube player captions data
  • Subtitle button in the player controls
  • Captions menu availability

If no transcript is found after several checks, the button shows as disabled.

note

Some videos have auto-generated captions that may take a moment to load. The extension retries detection several times before marking a video as having no transcript.

Disabling the Button​

If you prefer not to see the YouTube button:

  1. Open the extension popup
  2. Go to Settings
  3. Toggle off "Show YouTube summarize button"

Supported Content​

Content TypeSupported
Regular videosYes (with captions)
YouTube ShortsYes (with captions)
Live streamsNo (no transcript)
Videos without captionsNo
Premiere/scheduledNo