From Fedora Project Wiki

--- src/mozilla-plugin/openvrml.cpp     2011-02-02 05:31:34.000000000 +0100
+++ src/mozilla-plugin/openvrml.cpp     2012-02-20 13:13:53.726692923 +0100
@@ -216,7 +216,7 @@
 {
 }

-char * NP_GetMIMEDescription()
+const char * NP_GetMIMEDescription()
 {
     return NPP_GetMIMEDescription();
 }
@@ -381,13 +381,13 @@
     return err;
 }

-char * NPP_GetMIMEDescription()
+const char * NPP_GetMIMEDescription()
 {
     static const char mimeDescription[] =
         "model/x3d-vrml:x3dv:X3D world;"
         "model/vrml:wrl:VRML world;"
         "x-world/x-vrml:wrl:VRML world";
-    return const_cast<char *>(&mimeDescription[0]);
+    return mimeDescription;
 }

 /**