Unable to connect anywhere!

Hello,

I have a huge problem for the past hour, I can't log in anywhere. It started with Google, I wanted to log in to Gmail and it said "Cookies are disabled in your browser. Please enable them," even though my cookies were enabled. I searched a bit online, and I was told to clear the cache, so I did.

It still doesn't work, and WORSE: I can no longer log into Facebook. I enter my credentials, it shows me the little thing to save the device, so I click, and boom, it takes me back to the homepage, without logging me in... Yet I can log in with my cat's account (yes, yes) ...

So I decide to go to Hotmail... Same thing, impossible to log in, I enter my credentials and it takes me back to the homepage. I then check several other sites like Deviantart, it logs me in but logs me out about a minute later.

It's so confusing!

I thought it might be Chrome, so I installed Mozilla, and bam, the problem is the same except that on Facebook it says "Someone tried to log in to your account from an unrecognized device. You had enabled login notifications and your account has therefore been locked." (that "someone" was me a few minutes earlier)

Honestly, I have no idea where this could be coming from, and it's quite frustrating.

So while waiting for a savior's help,

thanks in advance...

Configuration: Windows 7 / Chrome 14.0.835.163