While ad-blocking extensions can significantly reduce the number of ads you see on Facebook, it is important to note that it may not be possible to block all ads entirely. Facebook continuously updates its ad delivery mechanisms, making it challenging for ad-blocking tools to catch every single ad. Some ads may still slip through, particularly those that are seamlessly integrated into the platform or served through native advertising methods. However, using reliable ad-blocking extensions can greatly minimize the presence of ads and provide you with a much cleaner and more enjoyable browsing experience on Facebook.