It’s a screenshot of flash page flipping book made by Kvisoft FlipBook Maker. Kvisoft updates FlipBook Maker to V4.2.1. With this flipbook software users can make flash flipbook or HTML5 flipbook out ...

The new PDF viewer built into Firefox 19 is built using HTML5 so it's pretty snappy. Unless they're really into web development, the average user probably won't find any of the other updates too ...