Really makes a difference when used correctly with Nano AdBlocker or uBlock Origin. Works best, in my opinion, with Nano Adblocker. It's a great little add-on that protects your ad blocker. Hasn't caused too many noticeable problems probably because the Dev's appear to be working very hard to keep this app updated and running well. I have used this on both FireFox and Chrome. I highly recommend the us of theses two adblockers and no other ad blocking software at all.