diff --git a/sway/config b/sway/config
index 6436e98..9df37b8 100644
--- a/sway/config
+++ b/sway/config
@@ -65,6 +65,7 @@ for_window [window_type="menu"] floating enable
 for_window [instance="update_installer"] floating enable
 # custom floating
 for_window [app_id="firefox" title="About Mozilla Firefox"] floating enable
+for_window [app_id="firefox" title="Picture-in-Picture"] floating enable
 for_window [app_id="firefox-developer-edition" title="About Firefox Developer Edition"] floating enable
 for_window [app_id="gnome-calculator"] floating enable
 for_window [app_id="org.gnome.NautilusPreviewer"] floating enable