How to Delete Yahoo Search Engin has not posted anything yet
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At times Chrome browser’s default search engine has been changed from google.com to search.yahoo.com without your permission which might irritate you and start thinking “how do I delete Yahoo search engine?” To do so first, open the Chrome browser and go to ‘Settings.’ Then select the ‘Search Engine.’ Choose the search engine of your choice from the drop-down list, and select the ‘Manage Search Engines.’ Click on the three dots next to Yahoo and choose ‘Remove from list.’
https://www.supportforusa.com/blog/how-to-remove-yahoo-search/