diff --git a/.docker/firefox/openbox.xml b/.docker/firefox/openbox.xml
index 0e73a07..40e98b6 100644
--- a/.docker/firefox/openbox.xml
+++ b/.docker/firefox/openbox.xml
@@ -13,7 +13,7 @@
 
 <applications>
     <!-- Match all windows and remove their decorations (obxprop | grep "^_OB_APP") -->
-    <application class="Firefox*" name="Navigator">
+    <application class="firefox" name="Navigator">
       <decor>no</decor>
       <maximized>true</maximized>
       <focus>yes</focus>