Then why does the Tor Project choose Firefox over Chromium as its browser base? Chromium is incredibly insecure and full of holes. Post this wishy washy bullshit on reddit, not on Lemmy.
Because Tor browser's goal is maximum anonymity and onion service. Firefox might be lag behind in security, but its code and features met the privacy requirements. Tor browser try to achieve some security by using noscript and block some web feature.
For a anonymous browser, but not for a secure browser. The paper is purely about privacy and anonymity. No security (sandboxing, mitigations) here.