I'm assuming you see this error well before you start up Firefox? Microsoft has a couple of tools to see what programs are trying to start when you start Windows, and stop them from doing so. (1) MSCONFIG This program is included with Windows. You can read more about it in these articles: * [http://www.netsquirrel.com/msconfig/msconfig_xp.html How to use MSCONFIG in Windows XP: NetSquirrel.com] * [http://support.microsoft.com/kb/310560 How to troubleshoot configuration errors by using the System Configuration utility in Windows XP] (2) AUTORUNS This program is an optional download from Microsoft you can get here: [http://technet.microsoft.com/en-us/sysinternals/bb963902.aspx Autoruns for Windows] That page also has links to usage suggestions and a support forum for the tool.