it is helpful to know if you try to hack non of your friend who using facebook via mobile or PC.within this simple trick you will find does your target use or not facebook via mobile .
Step 3: After Redirect to mbasic.facebook.com You Will See a "Mobile Icon" Next to His\Her Name if He\She Is Using Mobile Device to Surf Facebook.
It's my first post on null-byte.sorry for my bad english.
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