Temp
A Ubiquity plugin that converts temperatures between Celsius, Farenheit, and Kelvin. It's fast because it does not need to connect to a web site.
You can specify both the source and destination unit, as "20C in F" or "65F to C". If you leave one or both blank, temp will try to guess what you might want.
To install temp, you must first install Ubiquity if you haven't yet. Then you should see a "subscribe" button on the top-right corner of the Firefox window. Click it and you're done.
Examples
Press alt-space or control-space to start Ubiquity, and type "temp 60F". The answer appears as you type, as in the screenshot above.
Instead of typing, you can simply select a temperature anywhere on the page and issue the ubiq command "temp". Try it here: 25C.
Comments or suggestions to: pandamail at fastmail dot fm
See my other Ubiquity verbs.