Define
When there is highlighted text, a new option is added to the context menu. This option searches the definition of the highlighted text in Google (like searching "define:some_text").
The search results can be opened in:
- The current tab.
- A new tab.
- A new window.
Localizations: bg-BG (vankata), ca-AD (Sogame), da-DK (Kim Ludvigsen, AlleyKat), de-DE (Klopskind), en-US (Sogame), es-AR (KNTRO), es-ES (Sogame), fr-FR (Goofy), he-IL (Yaron), hr-HR (Krcko), hu-HU (Cashman), it-IT (Underpass, Pedro, Andrea), ja-JP (Kippis), ko-KR (wtspout), mk-MK (Ivan Jonoski), nl-NL (markh), pl-PL (teo), pt-BR (Rodrigo Bergmann Laurindo), pt-PT (promatik), ru-RU (Exlex), sk-SK (PeePay), sr-RS (DakSrbija), sv-SE (Lakrits), tr-TR (SerdarSahin), uk-UA (MozUA), zh-CN (fiag), zh-TW (toomore).
Works with: 
Firefox 1.5 - 9.* 
Thunderbird 3.0 - 9.* 
Flock 0.5 - 2.0
