AdBlocker Ultimate worked extremely well on FAcebook (PC, Windows 7, Firefox browser) for a very long time. I've recommend it all over and have been well pleased with this Firefox plugin. But, all of a sudden, NO ads are blocked and FB now floods my feed with ads. I've tried blocking elements, but that is an eternal job with no end in sight; I've tried uninstalling and reinstalling the plugin....nothing works. I could use some help with this, please!