The Firebug users are currently experiencing some shortcut conflicts related to 
the built-in DevTools. Namely this is the inspector shortcut Ctrl+Shift+C.
We (the Firebug Working Group) are trying to fix this[1] by disabling the 
shortcut. Because it's lazy loaded we can't access it immediately.
To have a general solution for such conflicts we're using a Mutation Observer 
checking for child nodes to be added to the window. Whenever it finds a key 
being added, it will disable it if it conflicts with a key used by Firebug.
Though somebody from our team is now scrupling whether that's the right way to 
go and fearing performance problems.
So I wanted to ask if someone can verify the current approach or suggest a 
better solution.

Sebastian

[1] http://code.google.com/p/fbug/issues/detail?id=6991
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