Protip: you can just paste the following to the address bar to bypass the paywall: javascript:window.location='https://facebook.com/l.php?u='+window.location
Still paywalled for me. Maybe FB users have a metered paywall?
javascript:location.href='https://facebook.com/l.php?u='+encodeURIComponent(location.href)
It successfully bypassed the paywall for me.