I am using Windows XP Pro 64 with FF 52.9 ESR and Slimjet 10 (uses Chrome 50)
A couple of years ago I implemented everything listed and it worked great with FF 52.9 ESR for over 90% of the streaming video sites I use. About a week ago https://www.ctvnews.ca/ctv-national-news stopped working and I get this screen every single time now.
https://calgary.ctvnews.ca/video still works and so do the other links listed on the page including the “CTV News at 6” link.
Is/are there any new things not yet listed that I can do to get this National News site to play the news again?