Kindle devices are designed to use Amazon's own e-book formats: AZW, and, in fourth generation and later Kindles, AZW3, also called KF8. Kindles do not support the EPUB file format used by many other e-book readers.
https://en.wikipedia.org/wiki/Amazon_Kindle
The Best eBook Format for the Kindle Fire is Epub. Posted on 28 October, 2012 by Nate Hoffelder in Editorials // 12 Comments. The Kindle Fire HD is Amazon's flagship device, so one might expect that Amazon's own native apps would be the best at their tasks-on this tablet, anyway. That is not true, and as I was reading a new review of the KFHD I began to realize quite how wrong that idea was.
http://the-digital-reader.com/2012/10/28/the-best-ebook-format-for-the-kindle-fire-is-epub/
Using a bit of free software, you can take ebooks in the EPUB, Mobi, and PDF formats and zap them over to your Kindle lickety-split. Here's how to do it. Email The easiest way to put books on your Kindle is to do it via email. To get your Kindle's email address, go to www.amazon.com/myk using your PC's Web browser. Tap on Your Devices, then choose the relevant Kindle from the gallery below. Next to Email, you'll find the Kindle's email address.
http://www.pcmag.com/article2/0,2817,2484180,00.asp
Amazon announced Kindle Fire, an Android-based tablet that uses a fork of Android on September 28, 2011. It was released for $199 and has a 7 in IPS color touchscreen display. This was the first Kindle without an E Ink display.
https://en.wikipedia.org/wiki/Amazon_Kindle
The first Kindle devices used the AZW e-book format, which is identical to the Mobipocket (MOBI) format for files that are not DRM-restricted. In late 2011, the Kindle Fire introduced Kindle Format 8 (KF8), better known as AZW3 file format.
https://en.wikipedia.org/wiki/Amazon_Kindle
That is the latest version of the free Aldiko app and it is hosted on Aldiko's support site. P.S. I have also added Aldiko to my 5 Apps for the Kindle Fire HD post.
http://the-digital-reader.com/2012/10/28/the-best-ebook-format-for-the-kindle-fire-is-epub/
The Kindle Fire HD, announced on September 6, 2012, is the second generation of Amazon's color touchscreen Kindle Fire tablet line. It is available in three form factors, 6 in, 7 in and 8.9 in screen sizes. Introductory pricing was at $199 and $299, respectively for the 16 GB versions; both Fire HD were sold at cost.
https://en.wikipedia.org/wiki/Amazon_Kindle
Show All Items. The Kindle Fire is a pretty cool device, especially for just $200. No, it's not an iPad, but it does come with enough to stand on its own. What it doesn't come with, however, is a clean set of instructions. Basically, there's just a card inside that says plug it in and be amazed!.
http://www.instructables.com/id/Get-started-with-a-Kindle-Fire/
The Kindle Fire HDX, announced on September 25, 2013, is the third generation of Amazon's Kindle Fire tablet line that uses Fire OS 3. It is available in 7 inch and 8.9 inch screen sizes, with introductory prices of $229 and $379, respectively, for the 16 GB version with special offers.
https://en.wikipedia.org/wiki/Amazon_Kindle
You can always just use calibre ebook management to convert the ebook files to a format it will use. I want to add an ebook to my Kindle fire &amp; it says the format is EPUB MOBI which is really confusing me since I knwo the kindle does not support the EPUB but does the MOBI. Help please!
http://www.instructables.com/id/Get-started-with-a-Kindle-Fire/
what e book format does a fire tablet use?
A fire tablet uses the format EPUB. A fire tablet uses an Epub book format.