Ironically, since I think Windows ME, Windows has been doing this anyway. It became smarter in Vista - I believe it would preload binaries at a time of the day

Ironically, since I think Windows ME, Windows has been doing this anyway. It became smarter in Vista - I believe it would preload binaries at a time of the day when they were most frequently opened. Also how often are people logging in afresh? It seems a bit of a waste of engineering time, but then again I hope that Mozilla has used these resources as a result of data showing it was worth implementing.