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Lonely Planet

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Don't be fooled by the last updated date. This still works; it just adds another search engine on the upper right hand corner for lonelyplanet.com

install this add on in firefox 3.0.1 and u can select lonelyplanet.com as a search option search in the default firefox search window

How do you use this?
I've downloaded firefox to a friends computer and installed this add-on and... nothing.
Where and how do you read the guides???