When spreading the Firefox bookmark bar, the bookmark content should remain within the area inside the Firefox window.
Now, when spreading the Firefox bookmark bar, when the bookmark bar is full, i.e. there are 7 folders of bookmark or only 7 bookmarks without folder.
When Firefox window is a square size, not a full screen window size.
The Firefox bookmark content will spread outside the Firefox window when click the bookmarks or choose the bookmarks. if there are subfolder, the spreading will be more "wide".
So, I suggest an idea that the Firefox bookmark contents should be remain within the area within the Firefox Windows, not spread to the right side outside the Firefox window.
Because the area that outside the Firefox are doing screen capturing.
The Firefox in the middle should not creating anything outside the Firefox window area.
Thank you so much.