Review for Bluhell Firewall by Mopard
Rated 5 out of 5 stars
Hands down it's my favorite AdBlocker, it uses dramatically less RAM than the competitors.
The only thing in my wishlist for this add-on would be "Remove Placeholders". It shows an unpleasent blank space in YouTube where the main ad was.
To create your own collections, you must have a Mozilla Add-ons account.