Firefox plugin update check

Sometimes, you may find your flash is not working properly. You  may need to check if your flash  player is update. You can go to:
https://www.mozilla.org/en-US/plugincheck/
to check and update your firefox plugin.

Another is about Java add on. When I downloaded Java, I found it is not automatically enabled. I need to got Firefox menu, click add and enable Java added-on.