I use DDG on firefox, and have for about 5 years. I uninstalled it for a day, just to see if the complaints about uninstalling were real, but I had no problems.Is there possibly a download site putting out a bad version or something? I decided to do a review because Avast keeps trying to get me to uninstall it - ever since they partnered with Yahoo. So now I guess I have to start looking for a new anti-virus provider...