HOW TO USE TWO DIFFERENT PROFILE PICTURE IN FACEBOOK

1.)Open this link : https://www.facebook.com/me/photos_albums
After that open your "Profile Pictures" Album , click any picture you want to use as nother profile picture for your facebook profile 

2.)After you clicked on the picture that you want to use as another profile picture in step "1" , look at the url and copy the "fbid" value , mine here is : 10151822490798885

3.)Go to your facebook account , click your profile picture and choose "Edit Thumbnail" .

a pop up window will appear .

4.)Right click on your profile picture and choose "Inspect element" .

5.)Scroll down until you reach the code which start with : 

Click the left small arrow to open the code .

scroll down a bit until you find this code : 

102714738884

">

Here we need to change the input field named "photo_fbid" value which is equal to : 102714738884 in the above code ,

notice that the value 102714738884 will not be the same as your code is .

Double click on the value to edit it , or right click and choose edit html , paste the fbid value that you copied in step "2" above . 

6.) Click any where to save the changed , close the "Inspect element" window , 

Finally click "Save" .