I am trying to implement a popup. I am setting width as auto for the popup wrapper which is the parent element. I am encountering the issue of some characters of li element which is the child element of popup wrapper is hidden. This issue occurs only when vertical scrollbar appears to the container. Also, this issue does not occur in chrome browser. Please refer to the attachments for screenshots. Also refer the below sample for reproducing the issue. https://stackblitz.com/edit/text-clipping-issue-in-firefox Please check this issue and any help to overcome this issue would be greatly appreciated.