Perhaps the same here - ghostery, noscript and adblockplus installed, and the page says no ad blocking detected! Actually, I'm hoping that this is a success rather than a failure because the next phase of anti-ad blocking is them needing to detect that I'm blocking ads. I, however, don't really want them to be able to detect that..

Hmmm, are you by any chance using a filter list other than Easy List in adblockplus?

Yes, I don't have EasyList ticked

While you're at it, it doesn't appear to work with Disconnect.me either.

Thanks, will take a look at that too. Pretty sure they publish their filter lists, so should be easy to make sure it's covered.