FastestFox known as  SmarterFox is one of the more powerful add-ons to enhance Firefox browsing. It displays a clean-looking bubble filled with customizable search engine shortcuts when you highlight a word or phrase.

Type a query into the Firefox address bar, and FastestFox will offer up suggestions as you type. It will also place alternative search engine icons on a results page (like Google, Yahoo, and Bing), and will repeat smaller version of those icons on Wikipedia pages, along with a list of related articles. To open a new Web page faster, there’s the qLauncher. One hot-key combo brings it up; tapping a single keyboard key opens Facebook, the New York Times, and whatever else you program in.

More about this addon:

• Download page media will find currently playing videos and allow you to save them to your computer.
• To open the qLauncher, press Ctrl + Space. You can change this in the options dialog.
• All the options are in Tools -> FastestFox. You can easily disable any feature you don’t want.

Download the FastestFox addon to enhance Firefox browsing

Source: Cnet.com, addons.mozilla.org