First this msg: "xmlNode.getElementsByTagName("countryname")[0] is undefined - 1" Then this: "A script on this page may be busy, or it may have stopped responding. You can stop the script now, or you can continue to see if the script will complete. Script: file:///C:/Program%20Files/Firefox/components/nsExtensionManager.js:623" The detail above is copied from message boxes that just started appearing tonight. I'm a little frustrated here as there appears to be no indication of what is prompting these messages ~ I could then at least have something to target to fix this. At present I'm unable to use firefox 3.6.8 If it helps at all, I've noticed a little blank rectangle attaching itself to the cursor during the times firefox is trying to work and I have stopped loading "Recovery" sessions which at least gor some functionality back into firefox, though this problem persists. Anything else I can do to track down the real culprit ???