Hey guys. This is a very simple trick and you dont need any software to unlock the profile picture. This works on any web browser. Just follow these steps :
- Right click on the profile picture.
- click on Open image in new tab.
- Remove the sub-link tags [like s160x160 or cxx.xx.xx or s320X320 or any]
- Hit ENTER
- you have the full picture now !!
IF the above words confusing? Have a look at this video.