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Is there a difference for user agent string for firefox desktop & firefox mobile?

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Is there a difference for user agent string for firefox desktop & firefox mobile?

Is there a difference for user agent string for firefox desktop & firefox mobile?

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Yes. All versions of mobile Firefox have "Fennec" in the useragent string. For example: Mozilla/5.0 (Android; Linux armv7l; rv:2.0.1) Gecko/20100101 Firefox/4.0.1 Fennec/2.0.1

For more details and examples, please see this article: http://hacks.mozilla.org/2010/09/final-user-agent-string-for-firefox-4/