Facebook has forced me to uninstall the Savefrom.net browser extension (as well as TamperMonkey, and a few other extensions) because it says they were Malware. I was locked out of my account and forced to run their Eset program on my computer in order to regain access. That removed Savefrom.net and a few other programs, without my prompting or my permission.
Please get this straightened out with the idiots over at Facebook.
Customer support service by UserEcho