When I register Facebook account, I get stuck on this process:
So I try to find a front-end of Facebook, but it won’t work.
This website does not displace any instance of Facebook.
Is there still a way to resolve this issue?
You may be able to continue by granting Facebook access to your camera. You can do so in about:preferences#privacy.
I’m not aware of any Facebook alternative frontend, but even if there were any, they usually allow reading content but not signing into accounts.
If granting camera, registering on tor browser is meaningless(because it get my identity)
It wouldn’t be entirely useless: Tor Browser still hides your IP address and prevents Facebook from linking your Facebook account with your activity on other websites.
However, if Facebook wants to see your face or ID card before creating your accout, you just can’t create a Facebook account until you show your face or ID card (or fake thereof).
That is the problem: facebook want to see my face, ip anonymity is not an important problem, but registration is.