Google Toolbar for Firefox

I just noticed that when I clean Firefox, CCleaner does not clean the Search History for the "Google Toolbar for Firefox."

My assumption is that I need to add this to the winapps2.ini file, but I don't know where the settings are stored for this version of the Google Toolbar.

The Internet Explorer version of Google Toolbar is being taken care of in the main winapps.ini file and its history for both version 3 and version 4 are being cleaned.

Has anyone added the "Google Toolbar for Firefox" to the winapps2.ini?

Or, can you tell me what key/s need to be set?

Thanks