Hi there, For the last week or so, when I watch Youtube on Firefox, I can't save a video to Watch Later or any other way, and I can't even open the pop-downs to edit my lists. I'm signed in, my ad blockers are off for Youtube, I'm doing everything the same way I've always done it. Thought it was just a brief glitch, but since it continues, I tried the same on the Safari browser today, and had no problems. There is an error message sometimes; I've added it via screen image. Can you help me figure out if this is a setting I can easily fix, or requires a fix on your end? Thank you!