The latest firefox update makes it so that when you have duplicate tabs open, if you close one, it closes them ALL. I had an issue where YouTube decided instead of opening a video in the same tab, it opened in a new tab, a setting I immediately fixed when I realized it had happened. Unfortunately, I only wanted THE DUPLICATE TABS to close, not ALL of the tabs linking to that video. I wanted A SINGLE TAB REMAINING of that tab, but there appears to be no setting anywhere in Firefox to change that. Can anyone help??? To be clear: When I have multiple of the same tab, I only want to close the other duplicates, not all of them, so I can still go about my business on that one tab. Ex: I open a YouTube video by accident in multiple tabs, I wish to watch this video without having to search YouTube for it again. I want to close the duplicates of that video tab, but not the original one.