It was working nicely for a few months, didn't block 100% but at least 80% of ads were blocked that's for sure. Why I gave 3 stars ? Because recently I have realized when I type website address, hit enter the pages load forever and I need to hit F5 or once again on the address bar then enter in order to load them. Turned out it is fault of Adblock Plus, turned it off and suddenly all websites load straight away. Huge disadvantage for me so I have to stop using it.