I had good luck with Firefox on my netbook, although that was a
  couple of years ago. The 3am ominous feeling? I've always gotten
  that - somewhere between 3-5am. I think its part of our body
  clock cycles; low on whatever that chemical is that makes you
  smile. I've read that when you get that doomy gloomy feeling,
  look at a face. Any face will do. Even look at your face in a
  mirror. I don't k...now why, but it seems to work."