I just tested the DictionaryForMIDs WebApp with the Firefox OS simulator: runs fine there !
Here is the webapp file for CEDICT:
http://dictionarymid.sourceforge.net/WebApp/dictionaries/dictionary EngChi (CEDICT)/CEDICT.webapp (http://dictionarymid.sourceforge.net/WebApp/dictionaries/dictionary%20EngChi%20(CEDICT)/CEDICT.webapp)
Hope there will soon be a volunteer who improves our 'mini_hmI' into a nice and complete HTML5 user interface.
Regards,
Gert