The pciture on the bottom shows the original Developer Tools in IE The picture on the left shows Developer Tools in the older pre IE11 version(here IE9). In this series, we'll take a detailed look at the Developer Tools included in Internet Explorer. They can be used to inspect page structure. Internet Explorer Developer Tools, also known as the F12 Developer Tools in Windows 10, and "Microsoft Releases IE Developer Toolbar". Retrieved ^ Jump up to: "IE Developer Toolbar Beta 3 - Now Available". IEBlog. 9 January This will show you how to enable or disable F12 Developer Tools in IE8, IE9, IE10, and IE11 for all users in Vista, Windows 7, and Windows 8. The developer tools that come with Internet Explorer 9 (F12 devtools as we call them affectionately) are a powerful aid to solving compatibility. Hi, Awesome plugin, but I seem to be having a problem getting this to work in Internet Explorer 9. Even the example at. This content refers to an older version of F12 developer tools. For more on using F12 tools in Windows Internet Explorer 9, see How to use F12 Developer. The DOMContentLoaded event fires as soon as the HTML page (and its scripts) has been loaded and parsed. Things like external stylesheets. The F12 developer tools that come with Internet Explorer 9 it help to solve the compatibility, network, scripting and performance issues etc. With the release of IE9 Beta and its built-in F12 Developer Tools, the IE team has advanced on its commitment to helping developers debug.