Dell FireFox Hostile

I discovered today that Dell.com is FireFox hostile. While searching support at Dell.com to find out why my Dell DJ-20 (origional version) is not compatible with Audible.com, I tried Dell's "find you service tag number." No can do, it spat back. "Incompatible Browser or Operating System" read the error. Hmm ... OS is WinXP. FireFox is the browser. Yep, Dell is FireFox hostile. I gave up. Two punts on Dell's "customer service" in one sitting.