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With metro IE 10 for windows 8, I assumed that I could use F12 to open developer tools, just like it was possible in every IE since 8.

However, in windows 8 that doesn't seem to do anything - has it been removed or is it accessible in another way?

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Are you running IE10 as the desktop version or the Metro app? – Daniel B Oct 28 '12 at 16:47
@DanielB metro app - it works while in the desktop version – Razor Oct 28 '12 at 16:48
I believe that the developer tools have been disabled for the metro version. – Daniel B Oct 28 '12 at 16:49
up vote 7 down vote accepted

No, it has not been removed. The Developer Tools only show up in the Desktop version, not the Metro version.

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How do you get the desktop version? – artfulrobot Sep 29 '14 at 16:24
Run iexplore.exe – Elmo Sep 29 '14 at 17:21

You can always still use Firebug Lite.

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Welcome to the SuperUser site. This question is related to Internet Explorer, Firebug is for Firefox. – wonea Mar 3 '13 at 22:33
@wonea Firebug Lite is browser-independent. See here: – Indrek Mar 4 '13 at 0:01

This future is not available for Metro applications and should still work for Desktop applications.

As an alternative you might want to use Fiddler instead which allows you to at least debug the traffic happening between the Metro browser and the internet. For rendering, it should suffice to check the Desktop version of the browser as they share the renderer, and also have the same JS engine.

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Not only most likely. – Joey Oct 28 '12 at 16:56
@Joey: True, was thinking in my mind if there were things that map to Metro itself but I highly doubt it. – Tom Wijsman Oct 28 '12 at 16:59
fiddler is fairly useless (can't handle encrypted traffic without invasive workarounds) - I'm going to try Firebug lite, which at least does some minor inspecting – Razor Oct 28 '12 at 17:08
@Razor: Why would you use encrypted traffic while developing a website? And yeah, in-website extensions can help. – Tom Wijsman Oct 28 '12 at 17:09
@TomWijsman to have an environment that most closely resembles production. Security warnings come to mind... – Razor Oct 28 '12 at 17:11

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