I have a HP laptop running windows 11. I use facebook on the web by going to facebook.com. Recently there has been a change to the way images are displayed when reading chats. The "pop up" box shows up as normal when I select chats which displays all my chats. If the chat contains an image, when I click on it it displays the image at full zoom with no scroll bars visible. This means that I cannot see the whole picture. The only change I have made to mozilla recently is to rest the print settings to default using about:support but I am not sure if this was the start of this problem. If I use microsoft edge for facebook.com or use the facebook app, all works fine.