More and more of our users (I manage a french blogging platform) are complaining about bugs on our interface. In 90% of cases, the problem comes from an extension that is installed on the user's browser. Users often don't even know that they have these extensions.
For example, there is Avast that removes sharing buttons (Twitter, FB), and some extensions like Pricepeep, Slick Saving, Deaply Shopping, VideoFileDownload or Pricora that totally mess up our interface.
The problem is that users believe that it is our fault and then quit without further investigation :-(
Do you have a miraculous solution to block or detect some or all of bad browser extensions? Thanks in advance!