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Shows total YouTube playlist duration directly in the playlist title. YouTube Playlist Duration automatically calculates the sum of visible videos in a YouTube playlist and displays the total in the playlist title. Main features: - Automatic updates when playlist content changes. - Display mode option: prefix or suffix. - Works in Chrome- and Firefox-based browsers. Known limitation: - The total includes videos currently loaded in the playlist DOM (practical limit around ~200 items on YouTube). Items not loaded by the UI are not included.
rating_count is the Chrome Web Store ratings count, not a written-review count.