▁the ▁manufact urer ▁and ▁tele com s ▁operator ▁have ▁failed ▁to ▁provide ▁an ▁update . ▁People ▁in ▁developing ▁countries ▁and ▁low - in come ▁people ▁in ▁advanced ▁econom ies ▁are ▁less ▁likely ▁to ▁upgrade ▁to ▁newer ▁smart ph ones ▁with ▁newer ▁built - in ▁Android ▁versions , ▁which ▁may ▁ent ice ▁them ▁to ▁choose ▁Firefox ▁as ▁the ▁more ▁secure ▁browser , ▁thus ▁contrib uting ▁to ▁Firefox ' s ▁market share . ▁ ▁As ▁of ▁early ▁ 2 0 1 5 , ▁Google ▁has ▁stopped ▁issu ing ▁its ▁own ▁patch es ▁for ▁Android ▁ 4 . 3 ▁and ▁earlier ▁to ▁the ▁Web View ▁browser ▁component ▁and ▁the ▁Web Kit ▁rendering ▁engine ▁there in , ▁which ▁are ▁used ▁by ▁the ▁native / stock ▁and ▁often ▁default ▁A OS P ▁browser ▁in ▁a ▁large ▁number ▁of ▁Android ▁dev ic est here by ▁sh ifting ▁the ▁patch ing ▁responsibility ▁to ▁device ▁manufact ur ers . ▁In ▁time , ▁the ▁native ▁browser ▁or ▁browser ▁components ▁become ▁out dated , ▁increasing ly ▁in secure , ▁and ▁unable ▁to ▁properly ▁render ▁modern ▁websites . ▁ ▁As ▁a ▁workaround , ▁a ▁Google ▁engineer ▁suggested ▁using ▁the ▁separately - install able ▁and ▁update able ▁Google ▁Chrome ▁or ▁Firefox ▁browsers . ▁In ▁case ▁of ▁Ice ▁C ream ▁Sand wich ▁( 4 . 0 . x ), ▁Google ▁stopped ▁supporting ▁that ▁branch ▁of ▁Android ▁with ▁updates ▁to ▁its ▁Chrome ▁browser ▁after ▁Chrome ▁ 4 3 , ▁and ▁moved ▁up ▁to ▁Android ▁ 4 . 1 ▁as ▁the ▁oldest ▁release ▁supported ▁by ▁Google ▁Chrome .