I run a security app on Windows 10 that allows me view camera images and I use a Firefox browser to do this. Before I can run the app to see live images, I usually have to respond "allow" to a prompt "allows blocked content". This morning an automatic update was made to Firefox when I started Firefox. After that, when I tried to run my security app that usually causes an "allow blocked content" message to pop up, I received no such message but content was obviously blocked because I was unable to view the images. How do I unblock the images now?