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    Fastest Sport Stacker

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    mozilla

    by mozilla

    2
    2 477 views
    Fellow Guinness World Record Holder, Steven Purugganan loves Firefox enough to do some fast cup stacking, just for us. As part of the World Sport Stacking Association, Steven is only 11 years old, but his fast hands put a pile of cups in their place in only 5.93 seconds.