Created attachment 8862974 [details] Screenshot.png User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:54.0) Gecko/20100101 Firefox/54.0 Build ID: 20170427091925 Steps to reproduce: I tried to open the Download library by simply pressing ctrl+j. Actual results: The download speed and time left is shown in 3 lines and other options like Open file, Cancel download are also misplaced. *Screenshot attached.
Please try Safe mode? https://support.mozilla.org/kb/troubleshoot-firefox-issues-using-safe-mode
Problem resolved. The UI was breaking because of the "FT DeepDark" theme.
not a firefox bug => invalid. please report the bug to the theme author.