Its a good adblocker. I use it with the NoScript Addon to disable scripts that can detect dblockers. Workds like a charm. But there is one thing thaqt forecdm me to uninstall this addon on my MacBook. Its using too much memory, it about 400 MB when starting the browser, and it gets worse while using it. Checked it on my Linux Desktop PC, the memory footprint is way smaller than on the Mac. But there seems to be a general Firefox-Mac-Memory Problem, but yout plugin is definetly affeted by this issue. 5 Stars for the plugin -1 star for the memory leak Mac High Sierra "Designed by Apple in California" thing...