Have you tried Wolfram Alpha? Do you think it’s absolutely amazing, but you want to search without going to the website everytime?
Here’s a small tip to search Wolfram Alpha without having to open http://www.wolframalpha.com/ nor going to Firefox search bar:
create a Ubiquity command.
For those who don’t know what Mozilla Ubiquity is, see my article here.
For those who know the best add-on Mozilla has ever released (or have read my article ;) ) just place your cursor into WolframAlpha.com search box, launch Ubiquity and type: create-new-search wolfram.
In this way you have just create a Ubiquity search command which will redirect you to wolframalpha.com everytime you launch Ubiquity and type wolfram terms you want to search.
You can download Mozilla Ubiquity here.