I use plasma-browser-integration (not using KDE) to get firefox websites (like youtube, netflix..) to respond to mpris commands like play/pause, and to get the playback status (playing/paused) so I can control media using my media keys and so I can display what's currently playing in polybar.

Sadly, with export QT_QPA_PLATFORMTHEME="qt5ct" in my .xinitrc, the dbus service org.mpris.MediaPlayer2.plasma-browser-integration that controls the browser doesn't load.

I need that environment variable because some qt apps like VLC look like shit when I don't have it set.


Instead of using qt5ct to theme my qt apps, I found that I can use Kvantum instead:

  1. Install kvantum and configure themes with kvantummanager.

  2. Use export QT_STYLE_OVERRIDE=kvantum instead of export QT_QPA_PLATFORMTHEME="qt5ct".

This fixed all problems.

Credit to /u/Zinjanthr0pus on reddit.


The issue has been fixed in the latest update of plasma-browser-interface.

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