Sorry I was confused at the beginning between your using jmol.php and the error mentioning jsmol.php. They are different things.
Nick's previous reply is more enlightening and precise, and inded it seems that there has been a change is Firefox's policy about protocols. I am not seeing that exact error about "Synchronous XMLHttpRequest", but I see other errors complaining about missing jsmol.php 1. Your page calls "jmol/Jmol.js" which is not there :( That's a problem, or at least a nuisance. 2. I get a couple of errors of the form Error connecting to server: Error connecting to server: http://your.server.here/jsmol.php? etc And of course, "your.server.here" is not what we want. It should be the url of your server if you have installed JSmol in it, or else http://chemapps.stolaf.edu/jmol/jsmol/php/jsmol.php But then it seems that piece of code is not being provided by you. Must be coming from jsmol.php then ? Then you need Bob to reply to this reliably.
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