Yahoo hijacks the Safari search feature

OS X Lion 107, 10.8 Mountain Lion, 10.9 Mavericks and 10.10 Yosemite

1. Safari > Preferences > Extensions

Turn all extension off, relaunch Safari and test.

Turn those on one by one and test.

2. Safari > Preferences > Search > Search Engine :

Select your preferred search engine.

3. Use free AdwareMedic to remove adware

http://www.adwaremedic.com/index.php

Install , open, and run it by clicking “Scan for Adware” button to remove adware.

Once done, quit AdwareMedic.

This app automates the process of removing adware.

or

Remove the adware manually by following the “HowTo” from Apple.

http://support.apple.com/en-us/HT203987

From the Safari menu bar, select

Safari ▹ Preferences... ▹ Extensions

Uninstall the "Searchme" extension. If it's not installed, uninstall any extensions you don't know you need.