The Luckysearch123.com program is a Firefox home page hijacker from the Adware/ShortcutHijacker family that is bundled with free programs you download off of the Internet. To remove this browser hijacker, clean the affected shortcuts, and remove related adware, please use the removal guide below. It is important that you pay close attention to license agreements and installation screens when installing anything off the Internet. If an installation screen offers you Custom or Advanced installation options, it is a good idea to select these.
Source: https://www.bleepingcomputer.com/virus-removal/remove-luckysearch123.com-home-page-hijacker