Blank screen after login with Firefox 3

Error with Firefox 3. After login I get a blank screen with no feeds. I have all cookies enabled. I can login and see my feeds with Safari with no problems. The Firefox error console has this to say:

Error: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIXMLHttpRequest.send]" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: http://mint.socialthing.com/?js :: trackOutclicks :: line 187" data: no]
Source File: http://mint.socialthing.com/?js
Line: 187

The message section of the error console says this:

Security Error: Content at http://socialthing.com/pepper/andrews...!&from=http%3A%2F%2Fsocialthing.com%2F%23%26lifestream%3A0%3A0%3Ae30%3D%26 may not load data from http://mint.socialthing.com/pepper/an...!&from=http%253A%252F%252Fsocialthing.com%252F%2523%2526lifestream%253A0%253A0%253Ae30%253D%2526.

Any ideas on what the problem is?
Inappropriate?
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