There is simply no better adblock addon for Firefox.

excellent!

uBlock blocks nearly every ad just about every time, and the very extremely few that do sneak by are so sneaky that they are fairly unobtrusive to your web viewing experience. Also, I'm a big proponent of the open source software model, and love the fact that uBlock, unlike many of the other ad blocking software out there, is FOSS.

Excellent add-on, thank you!
After many years with ad-block, I decided to try ublock. It's much more efficient, settings are not lost like in ad-block, and its blocking process can be customized efficiently.

Αποτελεσματικός και ελαφρύς,όπως λέει,κ' επίσης παίρνει αρκετές διαμορφώσεις!!!

add feature to auto backup myrules, myfilters, etc periodically.

Exelente

好好

Simplesmente, o melhor bloqueador de propaganda q existe.

O melhor adblocker q conheço, compatível com o Firefox 57, consome pouco recurso tanto no Firefox pra PC quanto no Firefox pra Android.

Excelente!

This is by far the best ad blocker I've ever used. Once in a while it is too strong for a select few websites and then I just have to tweak it a little. Other than that, it's perfection!

fast and easy to use