Facebook has recently started rolling out new kind of picture viewer which open any picture which you click on the same same page and once you done with viewing or commenting you will be back on the same page on which you were working earlier.
But some folks had complained that its annoying and they doesn’t liked it.If you also among those who want old classic picture viewer in Facebook back then you can get it.
Its very simple to get back your old picture viewer, All you need to do is visit below link and click on big orange button to install extension/add-on :-
Now that’s it, Just reload your Facebook page and your are done, Now any picture you open will open in old classic viewer.
You may take a look at the video below :-