structuredAttrs is enabled

trying https://addons.mozilla.org/firefox/downloads/file/4460647/tree_style_tab_mouse_wheel-1.5.10.xpi
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed

  0      0   0      0   0      0      0      0                              0
100  25362 100  25362   0      0 568.9k      0                              0
100  25362 100  25362   0      0 568.2k      0                              0
100  25362 100  25362   0      0 567.3k      0                              0