Importing citations from explorer or firefox on a mac

Hi I have ENDNOTE x4.02 and I am receivng an error message when trying to import references off the web. Message ‘no default application specified to open document’. any ideas? I am aware there areissues with explorer and macs (hence the firefox), but i still have the smae issue. The references are not transfering to my library. thanks

See this threadfor the Firefox answer in the endnote parts of this forum

(added later in edit, and probably the better links) and some other information and links about direct export are in this thread