Kindle Fire - Safari Mac

I have this HTTP request, I expected this, but WURFL is returning that. Please provide enough data to reproduce the problem.
Posts: 1
Joined: Wed Dec 28, 2011 9:39 am

Kindle Fire - Safari Mac

Postby MTempsNH » Wed Dec 28, 2011 9:45 am

I have been testing out your Java API for a future project of mine. I was testing how a new device would be added to the patch file and how that would affect the functionality etc. So I went ahead and added the Kindle Fire Silk enabled user agent string to the patch file:
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_3; en-us; Silk/1.1.0-80) AppleWebKit/533.16 (KHTML, like Gecko) Version/5.0 Safari/533.16 Silk-Accelerated=true

Everything seemed to work fine until I tried visiting the site using Safari on my Mac - with a user agent string of:
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_8; en-us) AppleWebKit/533.21.1 (KHTML, like Gecko) Version/5.0.5 Safari/533.21.1

It shows as a Kindle Fire using the newest Java API that I could download (

Any ideas why this is happening?


Posts: 393
Joined: Mon Jun 06, 2011 9:50 am

Re: Kindle Fire - Safari Mac

Postby kamermans » Wed Dec 28, 2011 9:59 am

We also noticed the conflict with the Silk user agent on the fire. Unfortunately, it is very similar to a standard Mac OS X Safari user agent, and is difficult to distinguish.

We have left the Kindle Fire Silk UA out of the WURFL for the time being while we come up with a solution.

One thing you can do is to add this entry in your patch file to keep your real Safari browser away from the Silk UA:

Code: Select all

<device user_agent="Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_8; en-us) AppleWebKit/533.21.1 (KHTML, like Gecko) Version/5.0.5 Safari/533.21.1" fall_back="safari" id="safari_anti_kindle_fire" />
I'm not sure how effective this will be for Mac OS versions other than 10.6.8, however.

Steve Kamerman

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