FAB - picture-in-picture stopped working

Please help! I use Free AD-blocker Browser (FAB) on my Samsung phone. I've used it without issue for over 2 years. Today, all of a sudden picture-in-picture has stopped working. I've restarted my phone several times, uninstalled the app, checked my settings over and over. Picture-in-picture is allowed in my settings and I've toggled it on and off to no avail. Can anybody suggest a way to fix this? submitted by /u/Slight-Sprinkles-329 [link] [comments]