[quarterdime]

If you are using qubes, you are likely using kicksecure. Whonix (used by many qubes users) is based on kicksecure.

[fsflover]

It's true, however the main security measure of Qubes-Whonix is not Kicksecure but hardware virtualization, which isolates Tor Browser (anon-whonix) from VM establishing the Tor connection (sys-whonix). Kicksecure is of secondary importance.