MoliUbiquity: JSON Format
Please make sure you are using Firefox 3, with Ubiquity installed. Otherwise, nothing happen.
(For those are new to Ubiquity, you can visit its tutorial. Type about:ubiquity in your browser navigation bar to change your hot-key for triggering Ubiquity. Enjoy!)
=> 
json-format: Re-write selected JSON text (if not selected, then the text on the current page) in pretty format.
preview: Show the pretty format of selected JSON text (if not selected, then the text on the current page).
execute: Re-write the selected JSON text (if not selected, then the text on the current page) in pretty format on a new tab page.
json-format