Viveice Hijack

Hello all

who else has been hit with this Viveice rubbish, it took me several hours to delete it as unfortuantly Malwarebytes couldnt "kill" it, ive successfully "killed" it from my system but what i would like to know is how on earth did it hijack only my Mozilla but it didnt touch my IE, acording to sites it only appears if you install software and not look smartly at the small tick boxes, now im no idiot when it comes to my own pc and i know what i install and what i need, so why did this peice of waste-ware decide it was OK to come onto my PC, last thing i installed was SIMS 4 via disc, i think this needs to be more made aware of for lower end users (newbies), but im asking you how did it appear on my PC overnight while watching MP4 files from my documents HDD (all my drives are check regulary), bit odd dochathink?

(i know my spelling is bad lol)

any ideas?