Facebook slow/won't load but everything else will

I have no problems with any website except for Facebook, it's either just a white screen or extremely slow. I've tried it on Chrome and IE and it does the same on both. I've tried doing a defrag, disc clean up and deleting cookies and all that but nothing has made much of a difference. It used to work just fine but now all of a sudden it doesn't work. I have Kaspersky on my computer and I'm wondering if that has something to do about it or what's going on and how I can fix it.
Thanks.
 
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