Firefox Developer Tools can debug remote devices (Firefox for Android and Firefox OS, for example). Make sure that you have turned on the ‘Remote debugging’ option in the remote device. For more, see the 
Ri nuk'unel taq rusamajib'al Firefox tikirel yekipararej näj okisaxela' (Firefox richin Android chuqa' Firefox OS, pa tz'etb'äl). Tatz'eta' chi tzijïl ri cha'oj ‘Näj pararenïk’ pa ri näj okisaxel. Richin ch'aqa' chik etamab'äl tatz'eta' ri 