This add-on is unmatched among any other browser. Chrome has a similar add-on though it is a color inversion, that consequently destroys images when browing. Blank your monitor changes ONLY the backgroud leaving images intact. This app is potentially the least known extreme benefit and one I personally recommend often. It is the sole reason for my ongoing commitment to using firefox on my Desktop. Provide this for Android and I guarantee a lifetime of use, and I am certain to pass along the benefit to thousands, I will go as far as to use Social Media to broadcast its benefit to both night time browsing and energy efficiency. PLEASE, GIVE ME THIS ADD-ON FOR ANDROID!!!!! I am reluctantly using Opera fo data compression in the meantime. Please help.