Showing the Adsense Firefox Referral Button to Non-Firefox Visitors
Filed in: Adsense Tips, Make Money Online, Open Source, Web Development — February 23rd, 2006There is no point showing the Firefox Adsense referral button to existing Firefox users. I used the following simple PHP code to show Firefox referral button to non-Firefox (Gecko) visitors only.
[php]
< ?php if ( !strpos($_SERVER['HTTP_USER_AGENT'], 'Gecko') ) { ?>
< ?php } ?>
[/php]
Simple huh? ![]()

Internet Explorer visitors see the Firefox referral banner.

Firefox visitors do not see the Firefox referral banner
Bug?
I want to keep the code as simple as possible, therefore, it can not do deep browser detection. Safari (Mac OS X) users will be treated as Firefox users as well.
Here is the better PHP browser detection script, if you are interested.
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