"OK, so the average browsing experience with Mozilla is pretty good to begin with, but Mozilla can be extended in several ways to get greater functionality. I'm only covering ways to improve browsing in this article; though there are many other extensions available, from games to web development tools. You can even get UI designers for developing your own Mozilla extensions.
"Of course, many people will say that the best way to use Mozilla is to install FireFox, but I'm still a bit too comfortable in Mozilla to consider changing. In any event, using extensions such as the Tabbed Browsing Extensions add FireFox's abilities (and more) to Mozilla..."