Thanks for the detailed response. I'm aware that there are lots of stuff active all the time but they indeed seem to have very little effect on the battery on this specific time interval. I just find it a bit weird that Firefox was that much active :} And draining 35% in 18h means that my phone can last, at best, ~2 days (from full charce to 0), if I don't use it at all. More importantly it means that at night I must check that it have at least 15% or it will die out during the night (which will cause the alarm not to play).Not the end of the world, I no, but still a bit weird, so I wondered is it normal or not, I think you are trying to say it is :)