Here is a little tutorial on how to find the old add on you desire, besides blabbing it on the forum.
Step 1: Type the add on you want.

Step 2: Click one of the links, but its mostly Mediafire.

Step 3: Done

You will need the files' full name in order to find it. If you don't remember its full name, that's not my problem. You would remember it if you joined a long time ago.