No, not plugins, extensions. I'm trying to find out two things: 1. Trying to find out what extensions are used most of the times on my service so I can create a

No, not plugins, extensions. I'm trying to find out two things: 1. Trying to find out what extensions are used most of the times on my service so I can create a better experience by implementing those features. (Like if I would be Tumblr I would like to track how many users are using http://missing-e.com/ http://missing-e.com/ or similar extensions.) 2. Trying to find out how much revenue do I loose because of ad blocking extensions.