virus or malware?
2011 model running High Sierra. Firefox is my preferred web browser
(73.0). I've been an Apple user since forever and I don't think I've
ever had an infection before so I'm not sure what to do. My search
engine preference in Firefox randomly resets to yahoo from google, and
shortly after every restart, Safari opens itself and another app opens
with it called ContentStyles or ThreadProperty. Both of those just
freeze my screen so I'm not sure what they are. Have tried throwing them
in the trash. Have tried throwing Safari in the trash, too, but
computer won't let me. :/
MacBook Pro 13", macOS 10.13