Hello catchusifu, That "Any Search" is a browser hijacker, malware that you will of course want to get rid of. See : [https://howtoremove.guide/any-search-mac/ https://howtoremove.guide/any-search-mac/] Go to the Firefox menu (≡) => Add-ons => Extensions ( Mac : Command + Shift + A) Look for anything unfamiliar - if you find one, remove it. Next step : run malwarescans. Further information can be found in this article : https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware?cache=no '''Run most or all of the listed malware scanners'''. They all work differently - what one program doesn't pick up, the other might. Especially for Mac : https://www.malwarebytes.com/mac/ And : https://malwaretips.com/blogs/remove-mac-os-x-virus/ Also see : https://macsecurity.net/view/187-remove-any-search-virus-from-mac