December 3, 2005
Adblock has been one of the most popular extensions for Firefox since day 1. Unfortunately, if you’ve upgraded from a previous version of Firefox to 1.5, and had Adblock installed, your Adblock is probably broken.
The usual symptom is that Adblock appears to be running, and even blocking ads, yet when you pull up the Adblock dialog, it will tell you that there is nothing blockable on the page.
The fix for this is to uninstall the Adblock extension, restart Firefox, and then go here and install Adblock Plus. (It’s in the quote at the bottom of the top post on the page)
Your Adblock (Plus) should now be working again.