Nice idea and worked fine but started eating too much RAM & CPU (on firefox-bin process, I only noticed that because it got a lot better the instant I disabled it). On Firefox Nighly 72.0a1/Arch Linux

Works like a charm. I use it on Manjaro, Mint, Lubuntu and Windows10 for Firefox and Chrome. In addition to AdGuard it is perfect.

The best ad blocker I've used. Although it would not hurt to optimize the code.

Good apps