This Firefox extension lets you highlight text and perform quick searches using preset commands, but the lack of a Help menu means you'll have to do some digging to figure out how to customize it.
FastYub! can be accessed either through the Firefox Tools menu or via a hot key combo. The interface consists of a pop-up window for entering search commands and an Options menu. The Options menu is for listing your top ten YubNub commands, such as searching for the key word on Google, eBay, or Wikipedia. Unfortunately, though, there's no Help menu to tell you how to set these up. We had to search the publishers Web site to figure out what exactly these commands were and how to enter them. Once we got situated, we highlighted a keyword, hit the hot key combo, entered the command, and the program quickly searched for the keyword in the site of our choice. There are a lot of commands to choose from, but it would have been nice if we could create our own, and some of the preset commands on the publishers Web site brought up inactive pages.
Novice users (and impatient users in general) might be turned off by this freeware programs lack of user guidance. But if you perform a lot of searches, FastYub's customization options might be just what you need.