-1 Stars: Can't add hosts/domains manually. This limits the usefulness of this extension considerably, as almost every site redirects from one domain to another, especially for authentication. Please allow me to arbitrarily add domains to the list. It would also be nice if I could have an "add all domains accessed in this tab session to the list for this container" option, to capture any domains redirected to automatically, but manual addition would at least be sufficient.

Pro-tip for anyone else bothered by this: in about:config, set network.http.redirection-limit to 0, and it will stop all redirection temporarily to allow you to add arbirary redirecting domains to this extension. Be sure to set it back to 20 or whatever afterwards.

-0.5 Stars: Can't skip the tutorial when installing the extension. I understand the desire for the intro if you're new, but its clear that the lack of a skip is so that extra products can be cross-sold. Please add a skip option for this.