Here's the Firefox bug for Picture-in-Picture subtitles. Unfortunately there has not much progress. https://bugzilla.mozilla.org/show_bug.cgi?id=1551058 https:

Here's the Firefox bug for Picture-in-Picture subtitles. Unfortunately there has not much progress. https://bugzilla.mozilla.org/show_bug.cgi?id=1551058 https://bugzilla.mozilla.org/show_bug.cgi?id=1551058