diff -up freewrl-1.22.12_pre2/src/plugin/npunix.c.ff8 freewrl-1.22.12_pre2/src/plugin/npunix.c
--- freewrl-1.22.12_pre2/src/plugin/npunix.c.ff8	2011-07-07 16:51:27.000000000 -0400
+++ freewrl-1.22.12_pre2/src/plugin/npunix.c	2011-12-06 14:51:50.456232858 -0500
@@ -788,7 +788,7 @@ Private_GetJavaClass(void)
  *  - Netscape uses the return value to identify when an object instance
  *    of this plugin should be created.
  */
-char *
+const char *
 NP_GetMIMEDescription(void)
 {
         return NPP_GetMIMEDescription();
diff -up freewrl-1.22.12_pre2/src/plugin/plugin_main.c.ff8 freewrl-1.22.12_pre2/src/plugin/plugin_main.c
--- freewrl-1.22.12_pre2/src/plugin/plugin_main.c.ff8	2011-07-15 13:15:57.000000000 -0400
+++ freewrl-1.22.12_pre2/src/plugin/plugin_main.c	2011-12-06 14:52:13.310017096 -0500
@@ -668,7 +668,7 @@ int Run (NPP instance)
 
 /*******************************************************************************
  ******************************************************************************/
-/*const*/ char* NPP_GetMIMEDescription(void)
+const char* NPP_GetMIMEDescription(void)
 {
         static const char mime_types[] =
                 "x-world/x-vrml:wrl:FreeWRL VRML Browser;"