Microsoft Edge is not an OS. Firefox allows encrypting passwords under a "Master" password, that renders files written to disk unavailable for other apps. Yes,

Microsoft Edge is not an OS. Firefox allows encrypting passwords under a "Master" password, that renders files written to disk unavailable for other apps. Yes, the OS can read from memory when you open it. Yes, the OS can have a keylogger, Trojan horse, and everything. That's beside the point. Security hardening could be and should be in place by vendors (Mozilla, Chrome). In some OSes it would work better than others, okay. We can live with that.