1, 6, 7 Firefox doesn't show, Chromium does. 2 Geolocation data gathered is available after clicking and allowing (did for not asking permissions unnecessarily). 3 Tested decoding of ogg/vorbis file. 4, 8 Mime types from suported files may not show on some browsers (Firefox don't show any for my tests; Chromium does show 2 PDFs). 5 Permission list is long. Some values are from webkit, some from moz. 9 Not supported in some browsers. 10 Chromium doesn't show, Firefox does.