Hi Tom, No direct experience, but this page may throw some light on the subject: http://www.captain.at/howto-ajax-permission-denied-xmlhttprequest.php I believe it's a security measure to prevent Cross-Site-Scripting, so there may be some issue about the script making a call from one domain to another. Seeing as there's a difference from work to home, I'd guess that something at home is making FF think the call and receive scripts are on different domains... My 2c anyway, Paul -----Original Message----- From: thelist-bounces at lists.evolt.org [mailto:thelist-bounces at lists.evolt.org] On Behalf Of Tom Dell'Aringa Sent: Friday, March 03, 2006 10:54 AM To: thelist Subject: [thelist] Ajax redux - another problem this time with FireFox! Egad, just when you thought it was ready...you get this: "Error: uncaught exception: Permission denied to call method XMLHttpRequest.open" This is in FireFox 1.5. It worked perfectly at work in FF, but I come home and begin to implement it, and now it fails in FF at home. The script is in the same domain, so I don't get why this would happen...any ideas on how to debug this? Now it works just fine in IE - I'm getting too old for this! Tom http://www.pixelmech.com/ http://www.crossandthrone.com/ Professor Rumford: 'But I still don't understand about hyperspace.' The Doctor: 'Well, who does?' K9: 'I do.' Doctor: 'Shut up, K9!' -- * * Please support the community that supports you. * * http://evolt.org/help_support_evolt/ For unsubscribe and other options, including the Tip Harvester and archives of thelist go to: http://lists.evolt.org Workers of the Web, evolt !