I'm a big fan of my browser's contextual menu. This menu, which can most easily be pulled up by right-clicking your mouse is commonplace for really useful extensions that are polite enough not to clutter your browsing experience with extra keyboard shortcuts or UI.
Firefox extension SimpleSearch is a really good example of this concept. Once installed it lets you search from a handful of sites like Wikipedia, IMDb, Google Maps, and dictionary search engine Definr. You just highlight the word or phrase you want to search and do a quick right-click to hop to the results.
The … Read more