I've seen many threads with this problem and I've tried every single suggestion, and still this problem persists. I've just updated firefox today, I've disabled hardware acceleration and I'm in firefox's "safe mode" with all add-ons disabled, plus, I've cleaned my registry, cleared firefox's cache, and have had microsoft security essentials scan for virsues, and updated my display drivers and still firefox keeps freezing until i move my mouse. It freezes and doesn't load anything, and it starts to work again as soon as i move my mouse for a couple seconds and then it freezes again. This happens constantly with firefox. It doesn't happen with IE or Chrome. Can anyone help me? I'm running Windows 7 Ultimate 64-bit, 4gb ram.