Thanks Idasilva, the "Easy Viewer" chrome app does work on linux... I can resize the window too, always a useful feature
Actually the stream is like 2 seconds behind "live", but that works for me still since I just need to see what the image looks like while making adjustments.
The "NACL" app which was suggested by Dahua when clicking the stream in Chrome does NOT work. I had to manually install the Easy Viewer app and that seems to get an image at least.
Wish these people would right some proper firmware. How hard can it be to load up an html5 video??