Since I upgraded to FF 17.0.1 for the Mac, I have found that it doesn't load any images about 25 % of the time. For instance, if I go to Google image search, all the images come up with just an outline of the image. The same thing happens in Netflix and other sites. Again, sometimes it works but too often it doesn't. I have tried other browsers but they work fine. I have also cleared cookies, and cache and disabled all my add-ons but that doesn't work either. I would like to back up a version if I could or I will probably have to change my browser choice. thanks for your help, chopWood