This add-on uses the URL for intelligent completion of your search queries in the search bar:

http://suggestplugin.ui-portal.de/s/?su=dvd&brand=1und1&origin=se_splugin_amo_sg&enc=utf-8

UI-Portal.DE is a service website of 1&1.
When using our search services, we retrieve the following information in order to deliver you relevant search suggestions:
brand=1und1&origin=se_splugin_amo_sg

These data are anonymous and only used for statistical purposes to help us improve the quality of our service.

Data privacy:
http://www.1und1.de/Datenschutz