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Visual tab switching with a black-hole overlay, tab roulette, themes, group locking, and idle-tab cleanup. Hole turns Chrome tab switching into a visual black-hole and roulette interface. It groups browser tabs into a purple Hole group, lets you open the Hole overlay from the group or extension action, and provides a wheel for switching, returning, creating, hiding, locking, and organizing tabs. It also supports themes, duplicate-tab visual cues, local preferences, and idle tab cleanup. Hole runs locally in the browser. It does not use remote code and does not transmit browsing data to a remote server.
rating_count is the Chrome Web Store ratings count, not a written-review count.