The ControlPanel.java file in i18n workspace is not the latest version:
/net/jano/export/disk12/i18n/ws/jdk1.3.1/ext/plugin/java/src/sun/plugin/resources/ControlPanel.java

When doing a diff with firefly version of this file, we found that a few messages were missing from the file, resulting in resource key names being displayed on ControlPanel's title. We can observe this problem in beta b12.

Here is the diff between firefly and ladybird version:
< { "basic.java_parms", "Java Runtime Parameters" },
< { "basic.show_exception", "Show Exception Dialog Box" },
---
> { "basic.java_parms", "Java Run Time Parameters" },
> { "basic.show_exception", "Track Lifecycle Exception" },
> { "basic.recycle_classloader", "Recycle Classloader" },

> { "main.control_panel_caption", "Java(TM) Plug-in Control Panel" },

> { "cache.clear_html_cache_from", "Cleared HTML Cache from " },
> { "cache.clear_jar_cache_from", "Cleared JAR Cache from " },
> { "cache.caption", "Clear cache" },

This affects all 9 localized files as well.