Resetting Your Password on a Computer
Go to facebook.com and click Forgot Password?.
Type the email, mobile phone number, full name or username associated with your account, then click Search.
Follow the on-screen instructions.
Resetting Your Password on an Android
Tap Forgot Password?.
Type the email, mobile phone number, full name or username associated with your account, then tap Find Your Account.
Follow the on-screen instructions.
Resetting Your Password on an iPhone/iPad
Tap Forgot Password? at the bottom of the login screen.
Type the email, mobile phone number, full name or username associated with your account, then tap Search.
Follow the on-screen instructions.