Ad Limiter 2.4.1 is now available. This new version is much more effective at dealing with Google’s wall of ads on certain search results. Search for “credit card” with Google, and you’ll see nothing but Google ads, some from rather sketchy businesses. Install Ad Limiter, and you’ll only see one ad, followed by real search results.
Especially effective for Firefox on mobile, where your whole phone screen is often ads when you search.