# Browser Sniffer to Identify Firefox

**URL:** <https://forum.kirupa.com/t/browser-sniffer-to-identify-firefox/280430>\
**Category:** web dev\
**Created:** [January 27, 2009, 4:09pm UTC](https://forum.kirupa.com/t/browser-sniffer-to-identify-firefox/280430 "2009-01-27T16:09:48Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![rynobot](https://avatars.discourse-cdn.com/v4/letter/r/bbce88/32.png) [@rynobot](https://forum.kirupa.com/u/rynobot)\
**Post date:** [January 27, 2009, 4:09pm UTC](https://forum.kirupa.com/t/browser-sniffer-to-identify-firefox/280430/1 "2009-01-27T16:09:48Z")

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Can anyone show me or point me to a tutorial that will illustrate how to write a browser sniffer script which will identify firefox and call a function if the user is in firefox.

thanks.