Search selected text with various search services.
SearchWith extension allows you to search selected with various search services. It adds a "Search With" sub menu on the context menu (right-click menu) with a configurable list of search services that can be used to search the highlighted text.
SearchWith encourages a simple context sub-menu by allowing one search engine per search service.
Hold down SHIFT key while selecting any of the search options to edit the selected text or to change the search engine associated with it.
Hold down CTRL key to quote ("") the selected text
Find more information on http://searchwith.mozdev.org