Net income for the quarter dropped 35% to $130 million, or $0.28 per share, compared with its 2011 figures of $201 million, or $0.44 per share.
Revenue, however, reached $13.18 billion, besting Amazon's guidance of between $11.9 billion to $13.3 billion for the quarter, and analysts' consensus estimate of $12.8 billion. Amazon's first-quarter revenue last year was $9.86 billion.
Amazon touted strong Kindle sales in Thursday's earnings announcement. The Kindle Fire is Amazon's "bestselling, most gifted and most wished for product across the millions of items available on Amazon.com since launch," according to the company.
"In the first quarter, nine out of 10 of the top sellers on Amazon.com were digital products -- Kindle, Kindle books, movies, music and apps," Amazon reports.
Most recently, Amazon made a software update to the Kindle Fire, making its ebooks experience more social.
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