The Facebook Help Center describes the "Lock Your Profile" feature as a privacy layer that restricts non-friends from viewing, enlarging, or downloading profile and cover photos. When a profile is locked:
Maybe you want to save a picture of a close friend for a birthday collage, or perhaps you are a digital marketer who needs a client’s official headshot. Regardless of your reason, this article will explore every available method—from browser extensions to mobile workarounds—while addressing the legal and ethical boundaries. facebook locked profile picture downloader
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