It works on several sites (I've been using it for many days) and it's great that I can block specific parts of pages without having to use another add-on (such as "Element hiding helper"). But, for some reason, even though I'm subscribed to several lists it doesn't block a SINGLE THING on http://brittanica.com/ (This is probably true for other sites as well.)

Even if I create special rules to block the ads, I re-load the page once or twice and new ads are displayed.

This is very annoying, this not "non-instrusive" advertising (and I have that setting unchecked, by the way) we're talking about ads with moving images and lots of blinking non-sense, right next to the article.

Adblock Plus allowed me to use the Encyclopedia Britannica site without any disturbances.

sinchronize your firefox profile after delete profile folder and sinchronize again! add adblock again.

Buena

uninstalling resolved the issue. For ad-free browsing there is opera.

很好，很喜欢，很实用

Myslim ze se dost zhorsil,propousti hodne reklam

sometimes blocks things I need to see