_: { xdg.mimeApps = { enable = true; defaultApplications = { "default-web-browser" = ["firefox.desktop"]; "text/html" = ["firefox.desktop"]; "x-scheme-handler/http" = ["firefox.desktop"]; "x-scheme-handler/https" = ["firefox.desktop"]; "x-scheme-handler/about" = ["firefox.desktop"]; "x-scheme-handler/unknown" = ["firefox.desktop"]; "application/pdf" = ["org.gnome.Evince.desktop"]; "audio/wav" = ["rhythmbox"]; }; }; }