It is kinda laggy sometimes(it took 4 GIGABYTES of ram once, firefox with all my tabs rarely takes more than 1 gb), thus a four star rating. Maybe it is all ad-blockers thing, a good choice either way. And you can pretty easily customise what to block(even non-ads), which is pretty useful

it is the best, nothing can be better than it

najlepszy adblocker serdecznie polecam

Користуюсь ним вже три роки, були іноді глюки але вони швидко вирішувалися, систему майже не навантажує можу рекомендувати

The reason for the 3 stars: I've been using uBlock for about 2 years now. Extremely efficient against ads. But too demanding performance-wise.

Basically sometimes my FF becomes literally unusable, it freezes up for 5-10mins. I sometimes have to restart it 3-4 times to get it to load my first page! At first I thought it was FF itself and was actually looking for an alternative browser, but then I got a hint that it could be the ads + uBlock. So I disabled it and IMMEDIATELY FF started normally as if the freezing that was happening before did never happen. I was really shocked that uBlock can have such a negative effect performance-wise. But now I am sure it is uBlock.

I am going to switch to another probably less efficient adblocker. But I cannot sacrifice that much performance even if it is for good ad blocking.