In cases where the web browser window Facebook not opening and responding properly then you might have to repair some problems in your computer. To do so, you need to run a system scan with an antivirus program such as MacAfee or Avast. These programs can detect different virus infections and help you eliminate them. The problem with McAfee and Avast antivirus programs is that they are mostly for business class computers and they can be really expensive. I would suggest you to use the free scanners such as Google or Microsoft.