Reuniting Humanity With Their Divinity...It's Time
Someone must have linked something containing Malware, I'll check it out.
Please try to check your browser settings...maybe the cookies are being blocked on one of your browsers...and if you are using chrome..try to goto settings..and then advanced settings..and try to change as per your needs...or may be your antivirus program is blocking it or your web browser is not accepting the SSL certificates for the website..
You should run a virus scan on your computer. You could have a exe. file trying to open up a window , and like Tej said your browser maybe trying to stop it/
Something for fun: How Google Safe browsing diagnostic rates page google.com:
Result: google.com is very unsafe :)
Computers have been malfunctioning lately.