It works well, though the UI is not the best. (The regex warning is annoying and settings was not in a location I expected, was expecting a normal click on icon drop down thing) But it works well for my local hosting. It does however stomp all over any opening of tabs in anything but that container. My suggestion, ignore any URL opened in a container. This way the redirection only takes precedence if there is no manual opening in a container (With open in a new container) or a Firefox's default always open in container. Though the later may have a race condition on how it works.