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Define
A Firefox add-on that allows you to search in Google the definition of any word you highlight....
Define It
Easy to use Adium Xtra that will help you find the definition for a word...
Define Word
Define Word - Firefox add-on that looks up for definition of selected text....
No-Referer
No-Referer - Mozilla add-on that allows you to open a specific link without sending HTTP referer...
Send Referer
Send Referer - Firefox add-on that allows you to send referer header when you open a link with right-click menu....
Block My Referer
A Firefox add-on that allows you to block the Referer with a single click on the green button installed in the toolbar...
Adaptive Referer Remover
Adaptive Referer Remover - Mozilla add-on that helps you prevent leaking specified URLs....
Change Referer Button
A Firefox add-on that lets you easily change the referrer value...
HeaderControl
Firefox add-on that allows you to be able to control the header on every website....