When the social chat  window appears it can be inspected using the browser toolbox. If you detach the window you can no longer inspect the elements inside. If you reattach the window it can no longer be inspected. To reproduce this make a loop call and inspect the conversation window that is in the browser/chrome side.  http://dxr.mozilla.org/mozilla-central/source/browser/base/content/socialchat.xml#8
I'm guessing this may get fixed by bug 988520.
Alex, can you confirm this got fixed with bug 1059308 and close if yes?
Yes. We can now selector about:loopconversation popup.
Status: NEW → RESOLVED
Last Resolved: 4 years ago
Resolution: --- → FIXED
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