diff --git a/.config/i3/config b/.config/i3/config
index 9aa53e8..3a96db3 100644
--- a/.config/i3/config
+++ b/.config/i3/config
@@ -106,7 +106,10 @@ for_window [class="Wrapper-1.0"] floating enable
 for_window [class="Pinentry"] floating enable, focus
 for_window [class="Gcr-prompter"] floating enable, focus ; # Pinentry got renamed to this, I guess?
 for_window [class="Thunar" title="Rename .*"] focus
-for_window [class="WSJT-X"] floating enable, focus
+for_window [class="WSJT-X"] floating disable
+for_window [class="Freecad" title="Formula editor"] floating enable, focus
+for_window [class="Freecad" title="Insert length"] floating enable, focus
+for_window [class="calibre" title="calibre - Preferences.*|User plugins"] floating disable
 
 # Font for window titles.
 font pango:DejaVu Sans Mono 10