Network in Developer Tools tab does not work

In Developer Tools Network Monitor does not work for me. No request appears in when I open or reload a page or during the execution of an AJAX request.
By clicking on the button Performance analysis does nothing no more.

What could be wrong?

Live HTTP Headers (and Firebug) had no problem showing the network news, so the problem was with one network tools of development of Firefox tab.

The good thing is that it is corrected now, probably after I updated Firefox to the latest version. To someone of another encounter the same problem, please update your browser and that should fix it.

Edit: Typo fixed. Comment added for others with the same problem.

Tags: Firefox

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