FastestFox's best feature is the addition of Google search results to the AwesomeBar. As you type in terms, Google results appear right underneath the usual history. This extension increases your internet browsing speed by predicting and downloading content automatically a head of you.
I had my eyes on the FastestFox add-on for the Firefox browser for some time now. In the beginning, I thought it was just another add-on to speed up the browser like Fasterfox which tweaks the network performance of Firefox.
Turned out that FastestFox, and its FastestChrome clone, offer a lot more than that. The extension takes care not only of the network side of things but also of the browsing side.
This means that you will get faster downloads plus a selection of productivity tweaks. Downloads are accelerated thanks to several configuration tweaks that are applied automatically during installation. The productivity and browsing enhancements require more explanation. On the productivity side, there are lots of smaller additions and tweaks that make life more comfortable.