1)   IE DOM Inspector 1.5.1
IE DOM Inspector is a add-in for Microsoft Internet Explorer that allows you to inspect and edit the live HTML DOM , view style attributes of any web document. You can view, traverse, and even dynamically update HTML DOM directly in the browser!
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 2)   IE WebDeveloper 2.3.1
IE WebDeveloper is an IE add-on. The rich web debugging toolset allows you to inspect and edit the live HTML DOM and CSS style, evaluate expressions and display error messages, explore source code of webpage and monitor DHTML Event and HTTP Traffic
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