Linux Firefox Netflix: Tested briefly and seemed to work OK. When Netflix does not have English I usually use different streaming service because Netflix shows have parts of scenes removed making timing a problem. I time the subtitles with a subtitle editor. (New problem) The page shows the subtitle that Netflix has. It does not show the place to supply your own subtitle button. By clicking on the Netflix Subtitle I found the place to put my subtitle file. That should be on the screen explicitly. For hours I thought it did not work.