This may not be new to some of you Firefox users but I just recently discovered this. I use the Food Network site a lot. You can't use it with an Ad Blocker so I used to turn it off and the ad's are terrible and very annoying.
One day I decided to open the site in a Firefox private window and turn on the ad blocker. The Food Network site no longer recognizes I have an ad blocker running and all is good. No Ad's.
I have do not track turned on in the normal FF window but obviously the private window, which also has do not track is doing something else. Maybe it does not let the site see the cookies on my machine.
Eagle's Lair Woodshop