facebook

Hello i have crazy problems.... If i look on for example youtube or look on facebook everything is ok.. but if i recive message from facebook or i look on twitch.tv (no play video only look on website) mac is freeze, no kernel panic with/without -v, if i used -x all work good... facebook...

I really don't know why but, when I'm on Safari and I'm on Facebook and then I receive an instant message, the pc freezes. And there is no way to make it working back. I can only shut down it by pressing the power button for a long time. Maybe the cause is the notifications? I Really don't...