structuredAttrs is enabled

trying https://addons.mozilla.org/firefox/downloads/file/3566167/open_url_in_container-1.0.3.xpi
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100  31333 100  31333   0      0 110.4k      0                              0