I can’t help you see or recover someone else’s Facebook password.
If it’s your account, use Facebook’s password reset page.
Go to the Facebook login page and select “Forgot password?”
Use the email address or phone number linked to your account.
Follow the verification steps sent by Facebook.
If you’re already logged in on a device, check saved passwords in your browser or password manager.
On Chrome, check Password Manager in browser settings.
On Safari, check saved passwords in iCloud Keychain settings.
On Firefox, check saved logins in browser settings.
On Edge, check saved passwords in browser settings.
If you suspect your account was compromised, change your password immediately.
Enable two-factor authentication on your Facebook account.