XUL Reference is more than a search engine plugin because the extension knows the names of all XPCOM components and interfaces, XUL elements, XBL Elements, events, scriptable objects and common properties/attributes/style-classes of the XUL Element.

If you highlight one of those, then the right click menu will show you what type of object you've selected and open a background tab with the reference page for that object. For instance, if you select the word nsIMsgFolder, then the right click menu will show 'XUL Reference (XPCOM interface)' and clicking on it will open the reference page for nsIMsgFolder in a background tab.

Publisher: Einar Egilsson

Tags: firefox add-on, search engine,