Please go to http://www.installmac.com/downloads/Uninstaller.dmg and run the application to revert all your browsers settings back to default.
If this did not work,
Please go to your browser settings (cmd+,) and change the default homepage and search to match your decision manualy.
How to change Home page in Safari:
How to change Search provider in Safari:
Please open your safari settings menu (CMD+,),
Remove all extensions
Make a search,
Change the search provider to any other on the list,
Make a search to verify it was changed,
Open your safari settings menu again,
Change the search provider to the one you want
If you have further questions please do not hesitate to contact us on firstname.lastname@example.org
I notice that you marked the post from Genieo support as solved. However, it's important to note that their provided uninstaller leaves behind items that will remain actively running, such as a process that is deceptively-named "Application."