Trusting Adblock is hard because of the "acceptable ads" feature. https://en.wikipedia.org/wiki/Adblock_Plus#Controversy_over_...
The Adblock you're referring to (the Chrome-only extension, right?) was published in 2009. As you can see, Adblock Plus predates it by 3 years or so.
https://addons.mozilla.org/en-US/firefox/addon/adblock-edge/
[0] https://addons.mozilla.org/en-US/firefox/addon/adblock-edge/