QuizCards: World Capitals is a fun chrome extension. it's a free extension , it has 287 active users since released its first version, it earns an average rating of 4.11 from 9 rated user, last update is 671 days ago.
This extension puts a icon on your browser bar and whenever you click that icon, you're presented with a question about the capitals of the world. It remembers what you answer correctly and incorrectly, and uses those statistics to figure out what cards to show you more often. A fun and educational way to learn geography while waiting for websites to load. :)
You could download the latest version crx file or older version files and install it.
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