Good Add-on Rated 5 out of 5 stars

Thanks for this very good add-on. But on XP SP3, FF 3.63 and Universal Search 2.0, I have this problem in the Error console error panel: Error: uncaught exception: [Exception... "Could not convert JavaScript argument" nsresult: "0x80570009 (NS_ERROR_XPC_BAD_CONVERT_JS)" location: "JS frame :: chrome://browser/content/browser.js :: delayedStartup :: line 1225" data: no]