Remove ublock origin extension (or make it removable) from Tor Browser.
The Tor Project discourages the use of add-ons like ublock because it can lead to de-anonymization of users due to a unique fingerprint than the rest of the users. Atleast, there should be an option to remove it. Forcing everyone to use it doesn't make sense.
Documentation: https://support.torproject.org/faq/#faq-3