What is a great browser ? One that loads up quickly OR one that makes your browsing experience speedier than the other browsers? OR is the add-ons or the extensions which might include functional add ons or themes.

I would say that a major selling point of Firefox initially was its support for extensions which let you do all kinds of goody functional stuff with either the websites, bookmarks, web development functionality or other stuff.

And now Google Chrome is onto the bandwagon announcing that Chrome will support extensions, and which can be downloaded from https://chrome.google.com/extensions/