Upgraded to Firefox 14 today and immediatly was running slow like I was wiht 12. On the other hand 13 betsa ran like a champ. Any ideads?

Firefox runs painfully slow. I upgraded from 12 to 13 beta recently and the problem went way. With 14 its just like before

I had the problem with FF 14 develop when I went from XP to Windows 7 Pro. I tried every fix in the forum plus uninstalled it using Revo Uninstaller and did a clean install, nothing worked. Then I said to myself "duh" and right clicked on the FF desktop icon and ran a compatibility check. Windows said FF 14 was not compatible with Windows 7 and is now running FF14 in the XP mode (a feature of Windows 7 Pro). It works fine now.
What is odd is that I have 2 other computers running Windows 7 Pro but FF 14 runs fine in Windows 7 on them.

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