classic dark

suberb and simple colour combination .... black and Grey ....unlike other apps giving more design & colours with is distubing the view of firefox .... This is dark and simple good to use Menus & folder in White is good for Better View

This is my favorite dark/grey/white theme overall currently. The bright white text that pops is perfect with the dark black background on the bulk of the menu header. The faintly grey, but mostly white URL and search is great contrast. The mid tone grey where all the bookmarks situate is a hint too light reducing it between about 2-12 color grades dark would be perfect I feel. You still want a bit of contrast from the DARK header, but a faint bit more darker overall would be great. It contributes to more eye strain and doesn't help power usage any either. Fixing that would reduce eyestrain and make it a bit more eco friendly on display energy usage over the course of a year. It's near perfect and my favorite theme right now personally. I've looked at tried and compared a lot of black/grey/white themes and this one tops my list. Mozilla's very own dark theme comes in a close second behind it.