**Legacy Microsoft Edge, not the Chromium based one. Obsolete.**
- Allow Address bar drop-down list suggestions -> Disabled
- Configure Autofill -> Disabled (Password Manager is off so no reason for autofill to be on)
- Configure Do Not Track -> Enabled
- Allow Extensions -> Disabled (I do not use extensions, and they reduce security in a lot of cases. Don't disable this if you need extensions, of course.)