Well, that was fast. Just two days after Facebook announced plans to start forcing ad-blocking users to see ads on its desktop site, AdBlock Plus has already beat the social network's new system.

In a Thursday blog post, AdBlock Plus' Ben Williams announced that users can update their filter lists now, and start re-blocking ads on Facebook.

"We promised that the open source community would have a solution very soon, and, frankly, they've beaten even our own expectations," Williams wrote. "As many of your know, the filter lists that 'tell' Adblock Plus what to block are in fact the product of a global community of web citizens."

"This time that community seems to have gotten the better of even a giant like Facebook," he added.

AdBlock Plus users can check out the post for instructions on how to manually update their filter list. If that's too much work, just wait a day or so and the filter will be updated automatically.

Williams warned that "this is still a cat-and-mouse game," and Facebook may soon defeat this solution.

"It's very possible that Facebook will write some code that will render the filter useless — at any time," he wrote. "If that happens, the ad-blocking community will likely find another workaround, then Facebook might circumvent again, etc."

Facebook is, obviously, not pleased with the move.

"We're disappointed that ad blocking companies are punishing people on Facebook as these new attempts don't just block ads but also posts from friends and Pages," a spokesperson said in a statement to PCMag. "This isn't a good experience for people and we plan to address the issue."

The hoopla comes after Facebook on Tuesday announced a plan to bypass addons like AdBlock or Ghostery, which sniff out advertising using a variety of methods. Facebook is circumventing all but the most determined ad blockers by making its advertisements indistinguishable from the status updates, photo uploads, and other content that appears in your news feed.