If you think this add-on violates Mozilla's add-on policies or has security or privacy issues, please report these issues to Mozilla using this form.
Please don't use this form to report bugs or request add-on features; this report will be sent to Mozilla and not to the add-on developer.
I didn't find how it works. FF11
There is not box like in the preview.
The box should be visible on google home pages listed in settings (icon in add-on bar).