--- a/dom/plugins/ipc/PluginModuleChild.cpp
+++ b/dom/plugins/ipc/PluginModuleChild.cpp
@@ -164,28 +164,31 @@ PluginModuleChild::Init(const std::strin
     bool exists;
     localFile->Exists(&exists);
     NS_ASSERTION(exists, "plugin file ain't there");
 
     nsPluginFile pluginFile(localFile);
 
 #if defined(MOZ_X11) || defined(OS_MACOSX)
     nsPluginInfo info = nsPluginInfo();
-    if (NS_FAILED(pluginFile.GetPluginInfo(info, &mLibrary)))
+    if (NS_FAILED(pluginFile.GetPluginInfo(info, &mLibrary))) {
         return false;
+    }
 
 #if defined(MOZ_X11)
     NS_NAMED_LITERAL_CSTRING(flash10Head, "Shockwave Flash 10.");
     if (StringBeginsWith(nsDependentCString(info.fDescription), flash10Head)) {
         AddQuirk(QUIRK_FLASH_EXPOSE_COORD_TRANSLATION);
     }
 #else // defined(OS_MACOSX)
     mozilla::plugins::PluginUtilsOSX::SetProcessName(info.fName);
 #endif
 
+    pluginFile.FreePluginInfo(info);
+
     if (!mLibrary)
 #endif
     {
         nsresult rv = pluginFile.LoadPlugin(&mLibrary);
         if (NS_FAILED(rv))
             return false;
     }
     NS_ASSERTION(mLibrary, "couldn't open shared object");