Using: SP2013 Online
On our site I have the quick launch menu disabled and the tree view enabled. I have then hidden any lists I did not want to appear in the treeview using Sharepoint Designer. However I have noticed that any app I install on the site is appearing in the tree view as well (as a subsite). I have gone to Site Settings -> Navigation to delete it from the structural navigation (they were under Current), but that does not seem to make any difference.
Can anyone tell me how I can hide those entries from the treeview?
Thanks
Just realise that the above solution does not work for internet explorer, just for firefox and chrome.