Unable to Log in to facebook

Hello,

I logged on to facebook earlier and was able to. However, I tried to update my status and it says, it can't update my status. I tried to click on a few pending requests on the farmville application and it goes to the farmville page, but later it does not divert to the page where I could accept the requests. I am using mozilla firefox. I went to the log in page, but it's not even opening my facebook account. I tried opening it using the Internet explorer but the problem is the same. I can only go to the log in page and no further.

I tried to shut down the PC but the same problem persists. I am able to log in to other websites and other applications except for Facebook.

I will appreciate your help.

Thanks,

Mau