Hitting anything on SparkFun with Firefox 3.0.3 triggers an “Internal Server Error.” The rest of the box text reads:
The server encountered an internal error or misconfiguration and was unable to complete your request. Your administrator may not have enabled CGI access for this directory.
The site works fine on IE 6.0/7.0, Firefox 2.x, and Opera 9.62 (which is what I’m posting from).
Methinks something’s misconfigured on the web server or it doesn’t know what Firefox 3 is.