Board Thread:Support Requests - Getting Technical/@comment-25101690-20160603121302

I played around too much with JS (to be precise, I used  ) and discovered a hidden log in my wiki. Here is a screenshot of it. The problem is, now the log is shown whenever I load any page on this wiki using the same browser (Firefox) and I can't find a way to hide it again permanently (well, I could of course hide it every time with my personal JS). In the information shown in the log I found a reference to http://webspectator.com so it's probably related to ads.

Has this ever happened to anyone else? The same thing doesn't exist in Community Central or any other Wikia community I tested, but I have no idea why our wiki should be different in that matter. 