Mark Zuckerberg confirmed years ago that this feature will never be added. So any tool claiming otherwise is either:
for photo management is the only way to ensure account security. Conclusion fb profile picture viewer
An FB profile picture viewer is a software application or online tool designed to allow users to view Facebook profile pictures in a larger size or to download them directly. Typically, when browsing Facebook, users can only see profile pictures in a small thumbnail size. The profile picture viewer tool enables users to see these images in a larger format or to save them to their device. Mark Zuckerberg confirmed years ago that this feature
Most "viewers" are either browser extensions or third-party websites. They function by: Extracting Image Links: Typically, when browsing Facebook, users can only see
If you’re searching for a viewer because you’re worried others are viewing your picture, take these steps:
There is one legitimate way to sometimes see a slightly larger version of a profile picture: browser cache and URL manipulation. By inspecting the page source or opening the image in a new tab, you might get a 320x320 pixel version instead of a 160x160 thumbnail. However, this still only works if the image was already visible to you. You cannot defeat "Friends Only" privacy this way.
Using your browser’s developer tools (F12 on Chrome/Firefox), you can sometimes extract the URL of a profile picture even if the image appears small. Right-click the image, select "Inspect," and look for the src attribute in the HTML. You may find a URL that ends with _n.jpg . Change the _n (standing for "normal") to _h (high) or remove it altogether. This only works if the image is not privacy-locked.