What Is About Extended?
About Extended is a browser hijacker that may appear on a Macbook after someone installs a free app or cracked software, or opens an executable file downloaded from an untrustworthy source. A browser hijacker may change browsers’ homepage, new tab page or the default search engine and stop users from changing those back. Some hijackers also collect data from browsers (browsing history, search history, etc.) and use that data to show customized ads to the users or sell it to third parties. You may follow this step-by-step guide to remove About Extended from your Mac and get rid of the Yahoo Search redirect.