Well that was a quick response, at least that's a positive thing :). I installed the add-on. Testing the search engine, searches seem to take forever. It keeps displaying the spinning icon in the orange square next to my query.

Edit: Ah the niceness of asynchronous javascript. It returns an error (I can see it in the JS console) but the page never displays that to me. Good ol' page reloads wouldn't have done that </rant>. In any case, the issue is my header modifying add-on. It injects "'\ into the x-forwarded-for header, causing your application to error. You probably have an sql injection in your code somewhere.

If you want to track the issue down, my IP is 83.161.210.237 or 2001:980:1f44::/48 if you support IPv6. Timestamp around 17:51 UTC+2.