I was trying to download something but Adobe Flash Player downloaded instead. I went to Safari and now my search engine is search.anysearchmanager.com. How do I get Safari back and get rid of the current search engine?

1. Safari > Preferences > Extensions

Uninstall any extension you have not installed knowingly.

Section: Manage extensions: https://support.apple.com/guide/safari/use-safari-extensions-sfri32508/mac

2. Choose a search engine.

Delete all text in the Smart Search field, click the magnifying glass , then choose a search engine from the list.

https://support.apple.com/guide/safari/customize-your-search-ibrwe75c2a3c/mac

3. Set your Home Page. https://support.apple.com/guide/safari/set-your-homepage-ibrw1020/mac

4. Restart your Mac.

5. Launch Safari holding the Shift key down.

6. If steps posted above don’t help,

use Malwarebytes for Mac to remove adware/malware.

https://www.malwarebytes.org/antimalware/mac/

Install guide: https://support.malwarebytes.com/docs/DOC-1817

Uninstall Guide: https://support.malwarebytes.com/docs/DOC-1190