Essentially Ublock has a lot of filters that introduce lag which is the reason for the title of this review. However, Ublock in the described configuration (not default) + Ghostery is the best you can get.

Now unbeknownst to most, the greater the filter list especially above 100k total, the more the slow down. For these two reasons my filter list is as follows:

My third Filters are:
Ublock Ressource Abuse
Malvertizing filter list by Disconnect (4918)
EasyList without element hiding rules (32805)
Adguart English filter (10559)
Total: approx 50K

As opposed to for example, EasyList which by itself is 75K + all the others you would add on so most users are in the 100K spectrum which affects their performance. The multipurpose and privacy filters introduce further lag. For these reasons, Ublock should not be used for privacy. Instead I use ghostery because it properly handles the privacy without slowdowns. Combined and configured as above, these two are the Top Gun Tank that every user should hire. Its interesting that all the freedom of customization, for most users, will usually lead to unnecessary lag and slow down even with the default filters.

It is fast, reliable, expandable by lists and does not slow down the browser.
If something is not blocked, this can be blocked very quickly with 3 clicks.
uBlock works fine with Firefox 57+.

Top abis

hope more chinese rules support

100% funcional, fácil de usar, y lo mejor de todo es que NO consume muchos recursos!. MUY RECOMENDADO.

Efficace et fiable

By far the best content blocker

Sometimes this addon disabled thumbnail and autoplay. Know why was it doing it?

meme en desactivant ublock pour le site
sur windows10 - firefox 56 , la navigation sur ebay est bloquée il faut a chaque fois initialiser la page apres le clic pour qu'elle s'affiche
si on desactive ublock completement ebay fonctionne normalement .

Hola, recomiendo una gran apps en esta ocasión, por su eficacia, por su manera de trabajar que pasa de manera desapercibida, pero.. que hace un trabajo fenomenal, yo recomiendo esta gran aplicación. Indispensable

Excellent and it's also advised by Riseup Labs (Riseup.net).

Contrary to some comments left today and previous days, on my FF 57 eBay works like a charm. However, even if some webpage misbehave, uBO buttons allow to quickly deactivate each single blocker or the whole blocker.

At today's date could not find a better blocker.

eBay still doesn't work with 1.14.10 and FF56. Already reinstalled. :(

Does a good job

Non da la possibilità di essere installate su Firefox beta 47

When this add-on is active sites looks very poor.

Excelente

Mola

很好啊

This is (was) a great add-on, but with the recent updates it no longer works right, as you can tell from numerous user reviews. I wrote to the developer and received no response. I downgraded to version 1.13.8 and it works beautifully, and I recommend others do likewise. Be sure to un-select automatic updates, or it will go back to the current version.