I was try on Firefox for android, taping LOOP / A B has no effect.
External keyboard and when im typing "A" "B" keys a markers A B has appears but video stuck.
It's a big time for android/iOS native application because even with mouse/keyboard android browsers works horrible with this site :/
I have a tv dongle With quad core CPU 1.6 (Ricomagic MK802 IV) so most applications and sities works perfect.
Other thing it who could be great is kind of XBMC (android or regullar are same AFAIK) plugin.