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by Rob Brown
Cool utility for cleaning up a page (for printing or better viewing) as well as for web development. Displays a red rectangle on the element under the mouse -- hit "w" to go wider (get the containing element), then hit other keystrokes to remove, etc
About this Add-on
To use Aardvark, just right-click on the page and select Start Aardvark from the popup menu. As you move the mouse over the page, you will see a red rectangle around the current block element, along with a label showing its type, and if they exist, its id, class, and style. You can then press various keys on the keyboard to do things, for instance W to navigate wider (as shown in the image), R to remove the element, I to isolate the element (that is, remove everything else on the page), V to view formatted source of that element, U to undo, Q to quit aardvark, and H for help, that is, a list of the 14 or so available keystrokes.
new command to create xpath