Flashblock is described as 'takes a pessimistic approach to dealing with Macromedia Flash content on a webpage and blocks ALL Flash content from loading. It then leaves placeholders on the webpage that allow you to click to download and then view the Flash content' and is a popular Ad Blocker in the Web Browsers category. There are seven alternatives to Flashblock for a variety of platforms, including Mac, Windows, Linux, Firefox and BSD. The best alternative is NoScript, which is both free and Open Source. Other great apps like Flashblock are GNU LibreJS (Free, Open Source), RequestPolicy (Free, Open Source), 3P Request Blocker (Free) and Better Pop Up Blocker (Free).
A Flashblock tool for Chrome. Stay in control of Flash content. Flashcontrol automatically blocks Flash and allows you to unblock content selectively; reduce memory and CPU usage with an added re-block ability.