As Facebook continues to roil over the idea that fake news on the social network could have had any effect on the U.S. presidential election, one Chrome extension is stepping in. The “B.S. Detector” Chrome extension, a new project released on Tuesday, claims to identify and flag fake news online. The extension identifies articles on Facebook that are from a “questionable source.”

The warning appears when users scroll over the article on a feed. The creator of the extension, Daniel Sieradski, said on Product Hunt that he compiled a list of well-known hoax sites that the extension flags (rather than developing an algorithm to warn users about individual articles). He said the sites run across the political spectrum. Users can submit requests to modify those settings on Github. READ MORE