Mozilla? Firefox?

I was fartin' around the Browsers downloads section, and noticed that there is a download of Mozilla at 11.7mb, and one for a completely separate and different Mozilla Firefox at 8.18mb. This 2nd one is the Firefox I have used for the past few years. But what the heck is the first one called just "Mozilla" (without the 'Firefox')? The screen shot provided is so freakin' old, it's hard to tell anything from it.....

 

AFAIK/remember, Mozilla was the browser prior to Firefox. Believe it had a few more features than just being a browser but don't remember what they were. When Firefox came along they just supported Mozilla for a few more years and that was the end of it (2006).

EDIT

http://www.mozilla.org/projects/browsers.html

 

Thanks! I just checked the date on the Mozilla download, and it was dated 2006. Somehow, I missed that when I was first poking around..... duh. :-o