Q: How to Change the Search Engine in Safari?

Open Safari, go to Safari menu > Preferences > General, and put Google as the homepage. Then, choose Google as your default search engine.

See > https://discussions.apple.com/thread/4497906?start=45&tstart=0

Back up all data, then remove the "Genieo" spyware by following the instructions on this page.

Some versions of the spyware may not be completely removed by those instructions. If you still have problems, do as follows.

Triple-click anywhere in the line below on this page to select it:

/Library/Frameworks/GenieoExtra.framework

Services ▹ Reveal

from the contextual menu.* A folder should open with an item selected. Move the selected item to the Trash. You may be prompted for your administrator password.

Repeat with each of these lines:

/Library/LaunchAgents/com.genieoinnovation.macextension.plist
/Library/LaunchDaemons/com.genieoinnovation.macextension.client.plist
/Library/PrivilegedHelperTools/com.genieoinnovation.macextension.client

Then reboot.

From the Safari menu bar, select

Safari ▹ Preferences ▹ Extensions

Uninstall any extension you don't recognize. If in doubt, uninstall all extensions. Do the equivalent for the Firefox and Chrome browsers, if you use either of those.

*If you don't see the contextual menu item, copy the selected text to the Clipboard (command-C). In the Finder, select

Go ▹ Go to Folder...

from the menu bar, paste into the box that opens (command-V). You won't see what you pasted because a line break is included. Press return.

You are welcome