Firefox 13 hogs cpu all of a sudden

Hey, everyone.
I'm having terrible experience with the new firefox 13, and I was wondering if other people are experiencing the same. FYI, I'm using Windows 7, i7, and 8gb ram.
After the auto-update, after 10-20 minutes into browsing, my hard drive (SSD) engages completely full rendering my computer useless. Everything is unresponsive, and the only thing that I can do is hard reset.
I tried uninstalling FF 13, but the same thing would happen with IE and Chrome. So I did a system recovery. The good news is the HDD problem is gone, but after the auto-update to FF 13, I realized the computer is terribly slow. I opened my resouce monitor, and wow, FF is pretty much driving the CPU to 100% constantly. I turn FF off, and it's fine. On FF12, I would have more than triple numbers of tabs (40+)compared to now (12-13) open, but it wouldn't render my computer slow.
This is a little frustrating since the setting and extensions are exactly same before. The only difference is the new Firefox.
Has anyone experienced the same thing?

I don't have a solution but I just wanted to say Firefox team get to this problem quickly we need a new upgrade to fix this problem,I will not use any other browser. :)

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