New ask Hacker News story: Is there a plugin/addon to block paywalled links on HN?

Is there a plugin/addon to block paywalled links on HN?
3 by graybeardhacker | 2 comments on Hacker News.
I don't plan on ever paying for access to articles. When I click a link on HN that requires a subscription to read the article I just click the back button. It would be great to have a little dollar sign icon to save me the click and save the world the wasted bandwidth. Is there a browser plugin that will mark paywalled links or eliminate them?