Yahoo search on my safari
google on safari redirected to Yahoo search
MacBook Air 13″, macOS 10.15
Question marked as
There is adware installed your Mac.
1. Run the latest release of Malwarebytes for Mac to remove malware/adware installed on your Mac.
Install guide: Install Malwarebytes for Mac v4
Uninstall Guide: https://support.malwarebytes.com/docs/DOC-1190
Click the “Scan Now” button.
Repeat the scan couple of times.
Once done quit Malwarebytes for Mac.
Restart the computer , relaunch Safari holding the shift key down.
2. Additional steps, if necessary.
1. Remove unknown Login item.
System Preferences > Users & Groups > Login items
Authenticate and unlock the lock.
Highlight the unknown login item and click the “-“ button at the bottom left to remove it.
2. Remove unknown and third party installed extensions if installed.
https://support.apple.com/guide/safari/use-safari-extensions-sfri32508/mac
3. Reset search engine. https://support.apple.com/guide/safari/customize-your-search-ibrwe75c2a3c/mac
4. Reset Homepage. https://support.apple.com/guide/safari/set-your-homepage-ibrw1020/mac
5. Restart the computer, relaunch Safari holding the shift key down.