This add on does its job but it has one major flaw, in that it will regularly forget its settings, especially if you install FireFox on a new computer and it links back to your older set ups.
It often forgets that I have allowed sites access and blocks things randomly.. It is very frustrating at times. I like it, I will keep using it (for now) but if it keeps forgetting settings and I have to remind it to unblock sites regularly going forward, I am going to drop this.

Works good for new Firefox version. UI made much easier than it was. But reloads a web-page with annoying delay.

I just love it.Does what I need.Thank you!!!

I've been using this *must have* addon for years. I also recommend the AdNauseam adblocker, which is so good that Google banned it. Unlike other adblockers, AdNauseam doesn't prevent content providers from getting paid because the addon silently clicks on the ads it blocks.