Like many others on this forum, Web Companion was installed onto my computer without my permission. I tried uninstalling it and removing it from Firefox search engines, but whenever I open Firefox up Private Search still is there. I rebooted by computer after doing so, but that didn't work either. After browsing some other threads on this forum with the same issue, I have come to the conclusion that I need to use FRST to create a text file. I have attached the text file.
Thank you for your answers!